21501660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1607}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 60512256

約数和(自身を除く): 39010596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 223, 446, 669, 892, 1115, 1338, 1607, 2230, 2676, 3214, 3345, 4460, 4821, 6428, 6690, 8035, 9642, 13380, 16070, 19284, 24105, 32140, 48210, 96420, 358361, 716722, 1075083, 1433444, 1791805, 2150166, 3583610, 4300332, 5375415, 7167220, 10750830, 21501660]

約数ペア:

[(1, 21501660), (2, 10750830), (3, 7167220), (4, 5375415), (5, 4300332), (6, 3583610), (10, 2150166), (12, 1791805), (15, 1433444), (20, 1075083), (30, 716722), (60, 358361), (223, 96420), (446, 48210), (669, 32140), (892, 24105), (1115, 19284), (1338, 16070), (1607, 13380), (2230, 9642), (2676, 8035), (3214, 6690), (3345, 6428), (4460, 4821)]