212587775

素因数分解:

$5^2\times {\mathrm{191}}^1\times {\mathrm{211}}^2$

素因数の和:623

約数の個数: 18

約数和(自身を含む): 266250816

約数和(自身を除く): 53663041

約数列:

[1, 5, 25, 191, 211, 955, 1055, 4775, 5275, 40301, 44521, 201505, 222605, 1007525, 1113025, 8503511, 42517555, 212587775]

約数ペア:

[(1, 212587775), (5, 42517555), (25, 8503511), (191, 1113025), (211, 1007525), (955, 222605), (1055, 201505), (4775, 44521), (5275, 40301)]