28778399

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1217}}^1$

素因数の和:1354

約数の個数: 16

約数和(自身を含む): 33149088

約数和(自身を除く): 4370689

約数列:

[1, 13, 17, 107, 221, 1217, 1391, 1819, 15821, 20689, 23647, 130219, 268957, 1692847, 2213723, 28778399]

約数ペア:

[(1, 28778399), (13, 2213723), (17, 1692847), (107, 268957), (221, 130219), (1217, 23647), (1391, 20689), (1819, 15821)]