21589490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9769}}^1$

素因数の和:9806

約数の個数: 32

約数和(自身を含む): 44316720

約数和(自身を除く): 22727230

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9769, 19538, 48845, 97690, 126997, 166073, 253994, 332146, 634985, 830365, 1269970, 1660730, 2158949, 4317898, 10794745, 21589490]

約数ペア:

[(1, 21589490), (2, 10794745), (5, 4317898), (10, 2158949), (13, 1660730), (17, 1269970), (26, 830365), (34, 634985), (65, 332146), (85, 253994), (130, 166073), (170, 126997), (221, 97690), (442, 48845), (1105, 19538), (2210, 9769)]