16221985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2423}}^1$

素因数の和:2544

約数の個数: 16

約数和(自身を含む): 21176064

約数和(自身を除く): 4954079

約数列:

[1, 5, 13, 65, 103, 515, 1339, 2423, 6695, 12115, 31499, 157495, 249569, 1247845, 3244397, 16221985]

約数ペア:

[(1, 16221985), (5, 3244397), (13, 1247845), (65, 249569), (103, 157495), (515, 31499), (1339, 12115), (2423, 6695)]