20212855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10723}}^1$

素因数の和:10770

約数の個数: 16

約数和(自身を含む): 27024480

約数和(自身を除く): 6811625

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 10723, 53615, 139399, 310967, 696995, 1554835, 4042571, 20212855]

約数ペア:

[(1, 20212855), (5, 4042571), (13, 1554835), (29, 696995), (65, 310967), (145, 139399), (377, 53615), (1885, 10723)]