21715125

素因数分解:

$3^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 36641280

約数和(自身を除く): 14926155

約数列:

[1, 3, 5, 15, 25, 75, 79, 125, 237, 375, 395, 733, 1185, 1975, 2199, 3665, 5925, 9875, 10995, 18325, 29625, 54975, 57907, 91625, 173721, 274875, 289535, 868605, 1447675, 4343025, 7238375, 21715125]

約数ペア:

[(1, 21715125), (3, 7238375), (5, 4343025), (15, 1447675), (25, 868605), (75, 289535), (79, 274875), (125, 173721), (237, 91625), (375, 57907), (395, 54975), (733, 29625), (1185, 18325), (1975, 10995), (2199, 9875), (3665, 5925)]