20885684

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 37989000

約数和(自身を除く): 17103316

約数列:

[1, 2, 4, 29, 58, 116, 401, 449, 802, 898, 1604, 1796, 11629, 13021, 23258, 26042, 46516, 52084, 180049, 360098, 720196, 5221421, 10442842, 20885684]

約数ペア:

[(1, 20885684), (2, 10442842), (4, 5221421), (29, 720196), (58, 360098), (116, 180049), (401, 52084), (449, 46516), (802, 26042), (898, 23258), (1604, 13021), (1796, 11629)]