21679827

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 31859568

約数和(自身を除く): 10179741

約数列:

[1, 3, 13, 39, 61, 169, 183, 507, 701, 793, 2103, 2379, 9113, 10309, 27339, 30927, 42761, 118469, 128283, 355407, 555893, 1667679, 7226609, 21679827]

約数ペア:

[(1, 21679827), (3, 7226609), (13, 1667679), (39, 555893), (61, 355407), (169, 128283), (183, 118469), (507, 42761), (701, 30927), (793, 27339), (2103, 10309), (2379, 9113)]