21024445

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 27669600

約数和(自身を除く): 6645155

約数列:

[1, 5, 13, 65, 139, 169, 179, 695, 845, 895, 1807, 2327, 9035, 11635, 23491, 24881, 30251, 117455, 124405, 151255, 323453, 1617265, 4204889, 21024445]

約数ペア:

[(1, 21024445), (5, 4204889), (13, 1617265), (65, 323453), (139, 151255), (169, 124405), (179, 117455), (695, 30251), (845, 24881), (895, 23491), (1807, 11635), (2327, 9035)]