21331800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{1693}}^1$

素因数の和:1722

約数の個数: 144

約数和(自身を含む): 81921840

約数和(自身を除く): 60590040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1693, 1800, 2100, 2520, 3150, 3386, 4200, 5079, 6300, 6772, 8465, 10158, 11851, 12600, 13544, 15237, 16930, 20316, 23702, 25395, 30474, 33860, 35553, 40632, 42325, 47404, 50790, 59255, 60948, 67720, 71106, 76185, 84650, 94808, 101580, 106659, 118510, 121896, 126975, 142212, 152370, 169300, 177765, 203160, 213318, 237020, 253950, 284424, 296275, 304740, 338600, 355530, 380925, 426636, 474040, 507900, 533295, 592550, 609480, 711060, 761850, 853272, 888825, 1015800, 1066590, 1185100, 1422120, 1523700, 1777650, 2133180, 2370200, 2666475, 3047400, 3555300, 4266360, 5332950, 7110600, 10665900, 21331800]

約数ペア:

[(1, 21331800), (2, 10665900), (3, 7110600), (4, 5332950), (5, 4266360), (6, 3555300), (7, 3047400), (8, 2666475), (9, 2370200), (10, 2133180), (12, 1777650), (14, 1523700), (15, 1422120), (18, 1185100), (20, 1066590), (21, 1015800), (24, 888825), (25, 853272), (28, 761850), (30, 711060), (35, 609480), (36, 592550), (40, 533295), (42, 507900), (45, 474040), (50, 426636), (56, 380925), (60, 355530), (63, 338600), (70, 304740), (72, 296275), (75, 284424), (84, 253950), (90, 237020), (100, 213318), (105, 203160), (120, 177765), (126, 169300), (140, 152370), (150, 142212), (168, 126975), (175, 121896), (180, 118510), (200, 106659), (210, 101580), (225, 94808), (252, 84650), (280, 76185), (300, 71106), (315, 67720), (350, 60948), (360, 59255), (420, 50790), (450, 47404), (504, 42325), (525, 40632), (600, 35553), (630, 33860), (700, 30474), (840, 25395), (900, 23702), (1050, 20316), (1260, 16930), (1400, 15237), (1575, 13544), (1693, 12600), (1800, 11851), (2100, 10158), (2520, 8465), (3150, 6772), (3386, 6300), (4200, 5079)]