19901441

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4079}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 4774399

約数列:

[1, 7, 17, 41, 119, 287, 697, 4079, 4879, 28553, 69343, 167239, 485401, 1170673, 2843063, 19901441]

約数ペア:

[(1, 19901441), (7, 2843063), (17, 1170673), (41, 485401), (119, 167239), (287, 69343), (697, 28553), (4079, 4879)]