12980541

素因数分解:

$3^1\times 7^2\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 20273760

約数和(自身を除く): 7293219

約数列:

[1, 3, 7, 21, 49, 147, 227, 389, 681, 1167, 1589, 2723, 4767, 8169, 11123, 19061, 33369, 57183, 88303, 264909, 618121, 1854363, 4326847, 12980541]

約数ペア:

[(1, 12980541), (3, 4326847), (7, 1854363), (21, 618121), (49, 264909), (147, 88303), (227, 57183), (389, 33369), (681, 19061), (1167, 11123), (1589, 8169), (2723, 4767)]