221437619

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{3371}}^1$

素因数の和:3578

約数の個数: 16

約数和(自身を含む): 247747584

約数和(自身を除く): 26309965

約数列:

[1, 13, 31, 163, 403, 2119, 3371, 5053, 43823, 65689, 104501, 549473, 1358513, 7143149, 17033663, 221437619]

約数ペア:

[(1, 221437619), (13, 17033663), (31, 7143149), (163, 1358513), (403, 549473), (2119, 104501), (3371, 65689), (5053, 43823)]