18910645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2719}}^1$

素因数の和:2844

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 5765195

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2719, 6955, 13595, 35347, 176735, 290933, 1454665, 3782129, 18910645]

約数ペア:

[(1, 18910645), (5, 3782129), (13, 1454665), (65, 290933), (107, 176735), (535, 35347), (1391, 13595), (2719, 6955)]