20210390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69691}}^1$

素因数の和:69727

約数の個数: 16

約数和(自身を含む): 37633680

約数和(自身を除く): 17423290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 69691, 139382, 348455, 696910, 2021039, 4042078, 10105195, 20210390]

約数ペア:

[(1, 20210390), (2, 10105195), (5, 4042078), (10, 2021039), (29, 696910), (58, 348455), (145, 139382), (290, 69691)]