18986836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{39229}}^1$

素因数の和:39255

約数の個数: 18

約数和(自身を含む): 36523130

約数和(自身を除く): 17536294

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 39229, 78458, 156916, 431519, 863038, 1726076, 4746709, 9493418, 18986836]

約数ペア:

[(1, 18986836), (2, 9493418), (4, 4746709), (11, 1726076), (22, 863038), (44, 431519), (121, 156916), (242, 78458), (484, 39229)]