21196684

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{859}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 38528000

約数和(自身を除く): 17331316

約数列:

[1, 2, 4, 31, 62, 124, 199, 398, 796, 859, 1718, 3436, 6169, 12338, 24676, 26629, 53258, 106516, 170941, 341882, 683764, 5299171, 10598342, 21196684]

約数ペア:

[(1, 21196684), (2, 10598342), (4, 5299171), (31, 683764), (62, 341882), (124, 170941), (199, 106516), (398, 53258), (796, 26629), (859, 24676), (1718, 12338), (3436, 6169)]