21778159

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1050

約数の個数: 16

約数和(自身を含む): 24685920

約数和(自身を除く): 2907761

約数列:

[1, 13, 29, 61, 377, 793, 947, 1769, 12311, 22997, 27463, 57767, 357019, 750971, 1675243, 21778159]

約数ペア:

[(1, 21778159), (13, 1675243), (29, 750971), (61, 357019), (377, 57767), (793, 27463), (947, 22997), (1769, 12311)]