1621685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 2135280

約数和(自身を除く): 513595

約数列:

[1, 5, 13, 61, 65, 305, 409, 793, 2045, 3965, 5317, 24949, 26585, 124745, 324337, 1621685]

約数ペア:

[(1, 1621685), (5, 324337), (13, 124745), (61, 26585), (65, 24949), (305, 5317), (409, 3965), (793, 2045)]