21921875

素因数分解:

$5^6\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 28

約数和(自身を含む): 29062128

約数和(自身を除く): 7140253

約数列:

[1, 5, 23, 25, 61, 115, 125, 305, 575, 625, 1403, 1525, 2875, 3125, 7015, 7625, 14375, 15625, 35075, 38125, 71875, 175375, 190625, 359375, 876875, 953125, 4384375, 21921875]

約数ペア:

[(1, 21921875), (5, 4384375), (23, 953125), (25, 876875), (61, 359375), (115, 190625), (125, 175375), (305, 71875), (575, 38125), (625, 35075), (1403, 15625), (1525, 14375), (2875, 7625), (3125, 7015)]