21931299

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{14419}}^1$

素因数の和:14451

約数の個数: 18

約数和(自身を含む): 34305180

約数和(自身を除く): 12373881

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 14419, 43257, 129771, 187447, 562341, 1687023, 2436811, 7310433, 21931299]

約数ペア:

[(1, 21931299), (3, 7310433), (9, 2436811), (13, 1687023), (39, 562341), (117, 187447), (169, 129771), (507, 43257), (1521, 14419)]