20185581897

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13271257}}^1$

素因数の和:13271289

約数の個数: 18

約数和(自身を含む): 31572322782

約数和(自身を除く): 11386740885

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13271257, 39813771, 119441313, 172526341, 517579023, 1552737069, 2242842433, 6728527299, 20185581897]

約数ペア:

[(1, 20185581897), (3, 6728527299), (9, 2242842433), (13, 1552737069), (39, 517579023), (117, 172526341), (169, 119441313), (507, 39813771), (1521, 13271257)]