18837698

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{19913}}^1$

素因数の和:19969

約数の個数: 16

約数和(自身を含む): 31543776

約数和(自身を除く): 12706078

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 19913, 39826, 219043, 438086, 856259, 1712518, 9418849, 18837698]

約数ペア:

[(1, 18837698), (2, 9418849), (11, 1712518), (22, 856259), (43, 438086), (86, 219043), (473, 39826), (946, 19913)]