21107156

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24317}}^1$

素因数の和:24359

約数の個数: 24

約数和(自身を含む): 43577856

約数和(自身を除く): 22470700

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24317, 48634, 97268, 170219, 340438, 680876, 753827, 1507654, 3015308, 5276789, 10553578, 21107156]

約数ペア:

[(1, 21107156), (2, 10553578), (4, 5276789), (7, 3015308), (14, 1507654), (28, 753827), (31, 680876), (62, 340438), (124, 170219), (217, 97268), (434, 48634), (868, 24317)]