20012135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2153}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 28381104

約数和(自身を除く): 8368969

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 2153, 9295, 10765, 23683, 27989, 118415, 139945, 307879, 363857, 1539395, 1819285, 4002427, 20012135]

約数ペア:

[(1, 20012135), (5, 4002427), (11, 1819285), (13, 1539395), (55, 363857), (65, 307879), (143, 139945), (169, 118415), (715, 27989), (845, 23683), (1859, 10765), (2153, 9295)]