213037975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1861}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 279374480

約数和(自身を除く): 66336505

約数列:

[1, 5, 19, 25, 95, 241, 475, 1205, 1861, 4579, 6025, 9305, 22895, 35359, 46525, 114475, 176795, 448501, 883975, 2242505, 8521519, 11212525, 42607595, 213037975]

約数ペア:

[(1, 213037975), (5, 42607595), (19, 11212525), (25, 8521519), (95, 2242505), (241, 883975), (475, 448501), (1205, 176795), (1861, 114475), (4579, 46525), (6025, 35359), (9305, 22895)]