21497336

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3727}}^1$

素因数の和:3843

約数の個数: 32

約数和(自身を含む): 46525440

約数和(自身を除く): 25028104

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3727, 5768, 7454, 14908, 26089, 29816, 52178, 104356, 208712, 383881, 767762, 1535524, 2687167, 3071048, 5374334, 10748668, 21497336]

約数ペア:

[(1, 21497336), (2, 10748668), (4, 5374334), (7, 3071048), (8, 2687167), (14, 1535524), (28, 767762), (56, 383881), (103, 208712), (206, 104356), (412, 52178), (721, 29816), (824, 26089), (1442, 14908), (2884, 7454), (3727, 5768)]