20803731

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 30875760

約数和(自身を除く): 10072029

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1109, 1443, 3327, 6253, 14417, 18759, 41033, 43251, 123099, 187421, 533429, 562263, 1600287, 6934577, 20803731]

約数ペア:

[(1, 20803731), (3, 6934577), (13, 1600287), (37, 562263), (39, 533429), (111, 187421), (169, 123099), (481, 43251), (507, 41033), (1109, 18759), (1443, 14417), (3327, 6253)]