17956913

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 20630736

約数和(自身を除く): 2673823

約数列:

[1, 13, 17, 193, 221, 421, 2509, 3281, 5473, 7157, 42653, 81253, 93041, 1056289, 1381301, 17956913]

約数ペア:

[(1, 17956913), (13, 1381301), (17, 1056289), (193, 93041), (221, 81253), (421, 42653), (2509, 7157), (3281, 5473)]