30871276

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{21379}}^1$

素因数の和:21421

約数の個数: 18

約数和(自身を含む): 57020460

約数和(自身を除く): 26149184

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 21379, 42758, 85516, 406201, 812402, 1624804, 7717819, 15435638, 30871276]

約数ペア:

[(1, 30871276), (2, 15435638), (4, 7717819), (19, 1624804), (38, 812402), (76, 406201), (361, 85516), (722, 42758), (1444, 21379)]