20937475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2801}}^1$

素因数の和:2847

約数の個数: 24

約数和(自身を含む): 29185632

約数和(自身を除く): 8248157

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 2801, 7475, 14005, 36413, 64423, 70025, 182065, 322115, 837499, 910325, 1610575, 4187495, 20937475]

約数ペア:

[(1, 20937475), (5, 4187495), (13, 1610575), (23, 910325), (25, 837499), (65, 322115), (115, 182065), (299, 70025), (325, 64423), (575, 36413), (1495, 14005), (2801, 7475)]