20212420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34849}}^1$

素因数の和:34887

約数の個数: 24

約数和(自身を含む): 43911000

約数和(自身を除く): 23698580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34849, 69698, 139396, 174245, 348490, 696980, 1010621, 2021242, 4042484, 5053105, 10106210, 20212420]

約数ペア:

[(1, 20212420), (2, 10106210), (4, 5053105), (5, 4042484), (10, 2021242), (20, 1010621), (29, 696980), (58, 348490), (116, 174245), (145, 139396), (290, 69698), (580, 34849)]