20796815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10321}}^1$

素因数の和:10370

約数の個数: 16

約数和(自身を含む): 27745536

約数和(自身を除く): 6948721

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 10321, 51605, 134173, 319951, 670865, 1599755, 4159363, 20796815]

約数ペア:

[(1, 20796815), (5, 4159363), (13, 1599755), (31, 670865), (65, 319951), (155, 134173), (403, 51605), (2015, 10321)]