21477360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:946

約数の個数: 80

約数和(自身を含む): 67272480

約数和(自身を除く): 45795120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 821, 872, 1090, 1308, 1635, 1642, 1744, 2180, 2463, 2616, 3270, 3284, 4105, 4360, 4926, 5232, 6540, 6568, 8210, 8720, 9852, 12315, 13080, 13136, 16420, 19704, 24630, 26160, 32840, 39408, 49260, 65680, 89489, 98520, 178978, 197040, 268467, 357956, 447445, 536934, 715912, 894890, 1073868, 1342335, 1431824, 1789780, 2147736, 2684670, 3579560, 4295472, 5369340, 7159120, 10738680, 21477360]

約数ペア:

[(1, 21477360), (2, 10738680), (3, 7159120), (4, 5369340), (5, 4295472), (6, 3579560), (8, 2684670), (10, 2147736), (12, 1789780), (15, 1431824), (16, 1342335), (20, 1073868), (24, 894890), (30, 715912), (40, 536934), (48, 447445), (60, 357956), (80, 268467), (109, 197040), (120, 178978), (218, 98520), (240, 89489), (327, 65680), (436, 49260), (545, 39408), (654, 32840), (821, 26160), (872, 24630), (1090, 19704), (1308, 16420), (1635, 13136), (1642, 13080), (1744, 12315), (2180, 9852), (2463, 8720), (2616, 8210), (3270, 6568), (3284, 6540), (4105, 5232), (4360, 4926)]