20998211

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{563}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 24003840

約数和(自身を除く): 3005629

約数列:

[1, 13, 19, 151, 247, 563, 1963, 2869, 7319, 10697, 37297, 85013, 139061, 1105169, 1615247, 20998211]

約数ペア:

[(1, 20998211), (13, 1615247), (19, 1105169), (151, 139061), (247, 85013), (563, 37297), (1963, 10697), (2869, 7319)]