21256522

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{14741}}^1$

素因数の和:14853

約数の個数: 16

約数和(自身を含む): 36796032

約数和(自身を除く): 15539510

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 14741, 29482, 103187, 206374, 1518323, 3036646, 10628261, 21256522]

約数ペア:

[(1, 21256522), (2, 10628261), (7, 3036646), (14, 1518323), (103, 206374), (206, 103187), (721, 29482), (1442, 14741)]