19818416

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30211}}^1$

素因数の和:30260

約数の個数: 20

約数和(自身を含む): 39336024

約数和(自身を除く): 19517608

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30211, 60422, 120844, 241688, 483376, 1238651, 2477302, 4954604, 9909208, 19818416]

約数ペア:

[(1, 19818416), (2, 9909208), (4, 4954604), (8, 2477302), (16, 1238651), (41, 483376), (82, 241688), (164, 120844), (328, 60422), (656, 30211)]