21681000

素因数分解:

$2^3\times 3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:114

約数の個数: 256

約数和(自身を含む): 83116800

約数和(自身を除く): 61435800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 27, 30, 33, 36, 40, 44, 45, 50, 54, 55, 60, 66, 72, 73, 75, 88, 90, 99, 100, 108, 110, 120, 125, 132, 135, 146, 150, 165, 180, 198, 200, 216, 219, 220, 225, 250, 264, 270, 275, 292, 297, 300, 330, 360, 365, 375, 396, 438, 440, 450, 495, 500, 540, 550, 584, 594, 600, 657, 660, 675, 730, 750, 792, 803, 825, 876, 900, 990, 1000, 1080, 1095, 1100, 1125, 1188, 1314, 1320, 1350, 1375, 1460, 1485, 1500, 1606, 1650, 1752, 1800, 1825, 1971, 1980, 2190, 2200, 2250, 2376, 2409, 2475, 2628, 2700, 2750, 2920, 2970, 3000, 3212, 3285, 3300, 3375, 3650, 3942, 3960, 4015, 4125, 4380, 4500, 4818, 4950, 5256, 5400, 5475, 5500, 5940, 6424, 6570, 6600, 6750, 7227, 7300, 7425, 7884, 8030, 8250, 8760, 9000, 9125, 9636, 9855, 9900, 10950, 11000, 11880, 12045, 12375, 13140, 13500, 14454, 14600, 14850, 15768, 16060, 16425, 16500, 18250, 19272, 19710, 19800, 20075, 21681, 21900, 24090, 24750, 26280, 27000, 27375, 28908, 29700, 32120, 32850, 33000, 36135, 36500, 37125, 39420, 40150, 43362, 43800, 48180, 49275, 49500, 54750, 57816, 59400, 60225, 65700, 72270, 73000, 74250, 78840, 80300, 82125, 86724, 96360, 98550, 99000, 100375, 108405, 109500, 120450, 131400, 144540, 148500, 160600, 164250, 173448, 180675, 197100, 200750, 216810, 219000, 240900, 246375, 289080, 297000, 301125, 328500, 361350, 394200, 401500, 433620, 481800, 492750, 542025, 602250, 657000, 722700, 803000, 867240, 903375, 985500, 1084050, 1204500, 1445400, 1806750, 1971000, 2168100, 2409000, 2710125, 3613500, 4336200, 5420250, 7227000, 10840500, 21681000]

約数ペア:

[(1, 21681000), (2, 10840500), (3, 7227000), (4, 5420250), (5, 4336200), (6, 3613500), (8, 2710125), (9, 2409000), (10, 2168100), (11, 1971000), (12, 1806750), (15, 1445400), (18, 1204500), (20, 1084050), (22, 985500), (24, 903375), (25, 867240), (27, 803000), (30, 722700), (33, 657000), (36, 602250), (40, 542025), (44, 492750), (45, 481800), (50, 433620), (54, 401500), (55, 394200), (60, 361350), (66, 328500), (72, 301125), (73, 297000), (75, 289080), (88, 246375), (90, 240900), (99, 219000), (100, 216810), (108, 200750), (110, 197100), (120, 180675), (125, 173448), (132, 164250), (135, 160600), (146, 148500), (150, 144540), (165, 131400), (180, 120450), (198, 109500), (200, 108405), (216, 100375), (219, 99000), (220, 98550), (225, 96360), (250, 86724), (264, 82125), (270, 80300), (275, 78840), (292, 74250), (297, 73000), (300, 72270), (330, 65700), (360, 60225), (365, 59400), (375, 57816), (396, 54750), (438, 49500), (440, 49275), (450, 48180), (495, 43800), (500, 43362), (540, 40150), (550, 39420), (584, 37125), (594, 36500), (600, 36135), (657, 33000), (660, 32850), (675, 32120), (730, 29700), (750, 28908), (792, 27375), (803, 27000), (825, 26280), (876, 24750), (900, 24090), (990, 21900), (1000, 21681), (1080, 20075), (1095, 19800), (1100, 19710), (1125, 19272), (1188, 18250), (1314, 16500), (1320, 16425), (1350, 16060), (1375, 15768), (1460, 14850), (1485, 14600), (1500, 14454), (1606, 13500), (1650, 13140), (1752, 12375), (1800, 12045), (1825, 11880), (1971, 11000), (1980, 10950), (2190, 9900), (2200, 9855), (2250, 9636), (2376, 9125), (2409, 9000), (2475, 8760), (2628, 8250), (2700, 8030), (2750, 7884), (2920, 7425), (2970, 7300), (3000, 7227), (3212, 6750), (3285, 6600), (3300, 6570), (3375, 6424), (3650, 5940), (3942, 5500), (3960, 5475), (4015, 5400), (4125, 5256), (4380, 4950), (4500, 4818)]