20943416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{727}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 42500640

約数和(自身を除く): 21557224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 277, 554, 727, 1108, 1454, 2216, 2908, 3601, 5816, 7202, 9451, 14404, 18902, 28808, 37804, 75608, 201379, 402758, 805516, 1611032, 2617927, 5235854, 10471708, 20943416]

約数ペア:

[(1, 20943416), (2, 10471708), (4, 5235854), (8, 2617927), (13, 1611032), (26, 805516), (52, 402758), (104, 201379), (277, 75608), (554, 37804), (727, 28808), (1108, 18902), (1454, 14404), (2216, 9451), (2908, 7202), (3601, 5816)]