20778369

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{6679}}^1$

素因数の和:6760

約数の個数: 16

約数和(自身を含む): 29819520

約数和(自身を除く): 9041151

約数列:

[1, 3, 17, 51, 61, 183, 1037, 3111, 6679, 20037, 113543, 340629, 407419, 1222257, 6926123, 20778369]

約数ペア:

[(1, 20778369), (3, 6926123), (17, 1222257), (51, 407419), (61, 340629), (183, 113543), (1037, 20037), (3111, 6679)]