15865228

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{10987}}^1$

素因数の和:11029

約数の個数: 18

約数和(自身を含む): 29304996

約数和(自身を除く): 13439768

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 10987, 21974, 43948, 208753, 417506, 835012, 3966307, 7932614, 15865228]

約数ペア:

[(1, 15865228), (2, 7932614), (4, 3966307), (19, 835012), (38, 417506), (76, 208753), (361, 43948), (722, 21974), (1444, 10987)]