21668751

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1109}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 33939360

約数和(自身を除く): 12270609

約数列:

[1, 3, 9, 13, 39, 117, 167, 501, 1109, 1503, 2171, 3327, 6513, 9981, 14417, 19539, 43251, 129753, 185203, 555609, 1666827, 2407639, 7222917, 21668751]

約数ペア:

[(1, 21668751), (3, 7222917), (9, 2407639), (13, 1666827), (39, 555609), (117, 185203), (167, 129753), (501, 43251), (1109, 19539), (1503, 14417), (2171, 9981), (3327, 6513)]