21543120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29921}}^1$

素因数の和:29940

約数の個数: 60

約数和(自身を含む): 72351396

約数和(自身を除く): 50808276

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29921, 59842, 89763, 119684, 149605, 179526, 239368, 269289, 299210, 359052, 448815, 478736, 538578, 598420, 718104, 897630, 1077156, 1196840, 1346445, 1436208, 1795260, 2154312, 2393680, 2692890, 3590520, 4308624, 5385780, 7181040, 10771560, 21543120]

約数ペア:

[(1, 21543120), (2, 10771560), (3, 7181040), (4, 5385780), (5, 4308624), (6, 3590520), (8, 2692890), (9, 2393680), (10, 2154312), (12, 1795260), (15, 1436208), (16, 1346445), (18, 1196840), (20, 1077156), (24, 897630), (30, 718104), (36, 598420), (40, 538578), (45, 478736), (48, 448815), (60, 359052), (72, 299210), (80, 269289), (90, 239368), (120, 179526), (144, 149605), (180, 119684), (240, 89763), (360, 59842), (720, 29921)]