20804565

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44741}}^1$

素因数の和:44780

約数の個数: 16

約数和(自身を含む): 34361856

約数和(自身を除く): 13557291

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 44741, 134223, 223705, 671115, 1386971, 4160913, 6934855, 20804565]

約数ペア:

[(1, 20804565), (3, 6934855), (5, 4160913), (15, 1386971), (31, 671115), (93, 223705), (155, 134223), (465, 44741)]