18943475

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{2099}}^1$

素因数の和:2147

約数の個数: 18

約数和(自身を含む): 24803100

約数和(自身を除く): 5859625

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 2099, 9025, 10495, 39881, 52475, 199405, 757739, 997025, 3788695, 18943475]

約数ペア:

[(1, 18943475), (5, 3788695), (19, 997025), (25, 757739), (95, 199405), (361, 52475), (475, 39881), (1805, 10495), (2099, 9025)]