21492536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4397}}^1$

素因数の和:4463

約数の個数: 32

約数和(自身を含む): 44331840

約数和(自身を除く): 22839304

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4397, 4888, 8794, 17588, 35176, 57161, 114322, 206659, 228644, 413318, 457288, 826636, 1653272, 2686567, 5373134, 10746268, 21492536]

約数ペア:

[(1, 21492536), (2, 10746268), (4, 5373134), (8, 2686567), (13, 1653272), (26, 826636), (47, 457288), (52, 413318), (94, 228644), (104, 206659), (188, 114322), (376, 57161), (611, 35176), (1222, 17588), (2444, 8794), (4397, 4888)]