21988460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3677}}^1$

素因数の和:3722

約数の個数: 48

約数和(自身を含む): 51903936

約数和(自身を除く): 29915476

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3677, 5980, 7354, 14708, 18385, 36770, 47801, 73540, 84571, 95602, 169142, 191204, 239005, 338284, 422855, 478010, 845710, 956020, 1099423, 1691420, 2198846, 4397692, 5497115, 10994230, 21988460]

約数ペア:

[(1, 21988460), (2, 10994230), (4, 5497115), (5, 4397692), (10, 2198846), (13, 1691420), (20, 1099423), (23, 956020), (26, 845710), (46, 478010), (52, 422855), (65, 338284), (92, 239005), (115, 191204), (130, 169142), (230, 95602), (260, 84571), (299, 73540), (460, 47801), (598, 36770), (1196, 18385), (1495, 14708), (2990, 7354), (3677, 5980)]