21261608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3253}}^1$

素因数の和:3321

約数の個数: 32

約数和(自身を含む): 42952800

約数和(自身を除く): 21691192

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3253, 3268, 6506, 6536, 13012, 26024, 61807, 123614, 139879, 247228, 279758, 494456, 559516, 1119032, 2657701, 5315402, 10630804, 21261608]

約数ペア:

[(1, 21261608), (2, 10630804), (4, 5315402), (8, 2657701), (19, 1119032), (38, 559516), (43, 494456), (76, 279758), (86, 247228), (152, 139879), (172, 123614), (344, 61807), (817, 26024), (1634, 13012), (3253, 6536), (3268, 6506)]