19870576

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112901}}^1$

素因数の和:112920

約数の個数: 20

約数和(自身を含む): 41999544

約数和(自身を除く): 22128968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112901, 225802, 451604, 903208, 1241911, 1806416, 2483822, 4967644, 9935288, 19870576]

約数ペア:

[(1, 19870576), (2, 9935288), (4, 4967644), (8, 2483822), (11, 1806416), (16, 1241911), (22, 903208), (44, 451604), (88, 225802), (176, 112901)]