20212885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52501}}^1$

素因数の和:52524

約数の個数: 16

約数和(自身を含む): 30241152

約数和(自身を除く): 10028267

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 52501, 262505, 367507, 577511, 1837535, 2887555, 4042577, 20212885]

約数ペア:

[(1, 20212885), (5, 4042577), (7, 2887555), (11, 1837535), (35, 577511), (55, 367507), (77, 262505), (385, 52501)]