21493576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12157}}^1$

素因数の和:12193

約数の個数: 32

約数和(自身を含む): 45957240

約数和(自身を除く): 24463664

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12157, 24314, 48628, 97256, 158041, 206669, 316082, 413338, 632164, 826676, 1264328, 1653352, 2686697, 5373394, 10746788, 21493576]

約数ペア:

[(1, 21493576), (2, 10746788), (4, 5373394), (8, 2686697), (13, 1653352), (17, 1264328), (26, 826676), (34, 632164), (52, 413338), (68, 316082), (104, 206669), (136, 158041), (221, 97256), (442, 48628), (884, 24314), (1768, 12157)]