21328676

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{3779}}^1$

素因数の和:3883

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 18678844

約数列:

[1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 3779, 5644, 7558, 15116, 64243, 128486, 256972, 313657, 627314, 1254628, 5332169, 10664338, 21328676]

約数ペア:

[(1, 21328676), (2, 10664338), (4, 5332169), (17, 1254628), (34, 627314), (68, 313657), (83, 256972), (166, 128486), (332, 64243), (1411, 15116), (2822, 7558), (3779, 5644)]