20968616

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154181}}^1$

素因数の和:154204

約数の個数: 16

約数和(自身を含む): 41629140

約数和(自身を除く): 20660524

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154181, 308362, 616724, 1233448, 2621077, 5242154, 10484308, 20968616]

約数ペア:

[(1, 20968616), (2, 10484308), (4, 5242154), (8, 2621077), (17, 1233448), (34, 616724), (68, 308362), (136, 154181)]