21497132

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4637}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 40257840

約数和(自身を除く): 18760708

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4637, 9274, 18548, 88103, 176206, 282857, 352412, 565714, 1131428, 5374283, 10748566, 21497132]

約数ペア:

[(1, 21497132), (2, 10748566), (4, 5374283), (19, 1131428), (38, 565714), (61, 352412), (76, 282857), (122, 176206), (244, 88103), (1159, 18548), (2318, 9274), (4636, 4637)]