21165300

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:109

約数の個数: 216

約数和(自身を含む): 75196576

約数和(自身を除く): 54031276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 67, 75, 78, 81, 90, 100, 108, 117, 130, 134, 135, 150, 156, 162, 180, 195, 201, 225, 234, 243, 260, 268, 270, 300, 324, 325, 335, 351, 390, 402, 405, 450, 468, 486, 540, 585, 603, 650, 670, 675, 702, 780, 804, 810, 871, 900, 972, 975, 1005, 1053, 1170, 1206, 1215, 1300, 1340, 1350, 1404, 1620, 1675, 1742, 1755, 1809, 1950, 2010, 2025, 2106, 2340, 2412, 2430, 2613, 2700, 2925, 3015, 3159, 3350, 3484, 3510, 3618, 3900, 4020, 4050, 4212, 4355, 4860, 5025, 5226, 5265, 5427, 5850, 6030, 6075, 6318, 6700, 7020, 7236, 7839, 8100, 8710, 8775, 9045, 10050, 10452, 10530, 10854, 11700, 12060, 12150, 12636, 13065, 15075, 15678, 15795, 16281, 17420, 17550, 18090, 20100, 21060, 21708, 21775, 23517, 24300, 26130, 26325, 27135, 30150, 31356, 31590, 32562, 35100, 36180, 39195, 43550, 45225, 47034, 52260, 52650, 54270, 60300, 63180, 65124, 65325, 70551, 78390, 78975, 81405, 87100, 90450, 94068, 105300, 108540, 117585, 130650, 135675, 141102, 156780, 157950, 162810, 180900, 195975, 211653, 235170, 261300, 271350, 282204, 315900, 325620, 352755, 391950, 407025, 423306, 470340, 542700, 587925, 705510, 783900, 814050, 846612, 1058265, 1175850, 1411020, 1628100, 1763775, 2116530, 2351700, 3527550, 4233060, 5291325, 7055100, 10582650, 21165300]

約数ペア:

[(1, 21165300), (2, 10582650), (3, 7055100), (4, 5291325), (5, 4233060), (6, 3527550), (9, 2351700), (10, 2116530), (12, 1763775), (13, 1628100), (15, 1411020), (18, 1175850), (20, 1058265), (25, 846612), (26, 814050), (27, 783900), (30, 705510), (36, 587925), (39, 542700), (45, 470340), (50, 423306), (52, 407025), (54, 391950), (60, 352755), (65, 325620), (67, 315900), (75, 282204), (78, 271350), (81, 261300), (90, 235170), (100, 211653), (108, 195975), (117, 180900), (130, 162810), (134, 157950), (135, 156780), (150, 141102), (156, 135675), (162, 130650), (180, 117585), (195, 108540), (201, 105300), (225, 94068), (234, 90450), (243, 87100), (260, 81405), (268, 78975), (270, 78390), (300, 70551), (324, 65325), (325, 65124), (335, 63180), (351, 60300), (390, 54270), (402, 52650), (405, 52260), (450, 47034), (468, 45225), (486, 43550), (540, 39195), (585, 36180), (603, 35100), (650, 32562), (670, 31590), (675, 31356), (702, 30150), (780, 27135), (804, 26325), (810, 26130), (871, 24300), (900, 23517), (972, 21775), (975, 21708), (1005, 21060), (1053, 20100), (1170, 18090), (1206, 17550), (1215, 17420), (1300, 16281), (1340, 15795), (1350, 15678), (1404, 15075), (1620, 13065), (1675, 12636), (1742, 12150), (1755, 12060), (1809, 11700), (1950, 10854), (2010, 10530), (2025, 10452), (2106, 10050), (2340, 9045), (2412, 8775), (2430, 8710), (2613, 8100), (2700, 7839), (2925, 7236), (3015, 7020), (3159, 6700), (3350, 6318), (3484, 6075), (3510, 6030), (3618, 5850), (3900, 5427), (4020, 5265), (4050, 5226), (4212, 5025), (4355, 4860)]