19666985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{683}}^1$

素因数の和:1144

約数の個数: 16

約数和(自身を含む): 25510464

約数和(自身を除く): 5843479

約数列:

[1, 5, 13, 65, 443, 683, 2215, 3415, 5759, 8879, 28795, 44395, 302569, 1512845, 3933397, 19666985]

約数ペア:

[(1, 19666985), (5, 3933397), (13, 1512845), (65, 302569), (443, 44395), (683, 28795), (2215, 8879), (3415, 5759)]