20957625

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1433}}^1$

素因数の和:1467

約数の個数: 48

約数和(自身を含む): 40714128

約数和(自身を除く): 19756503

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 975, 1125, 1433, 1625, 2925, 4299, 4875, 7165, 12897, 14625, 18629, 21495, 35825, 55887, 64485, 93145, 107475, 167661, 179125, 279435, 322425, 465725, 537375, 838305, 1397175, 1612125, 2328625, 4191525, 6985875, 20957625]

約数ペア:

[(1, 20957625), (3, 6985875), (5, 4191525), (9, 2328625), (13, 1612125), (15, 1397175), (25, 838305), (39, 537375), (45, 465725), (65, 322425), (75, 279435), (117, 179125), (125, 167661), (195, 107475), (225, 93145), (325, 64485), (375, 55887), (585, 35825), (975, 21495), (1125, 18629), (1433, 14625), (1625, 12897), (2925, 7165), (4299, 4875)]