18219841

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 20211840

約数和(自身を除く): 1991999

約数列:

[1, 19, 23, 173, 241, 437, 3287, 3979, 4579, 5543, 41693, 75601, 105317, 792167, 958939, 18219841]

約数ペア:

[(1, 18219841), (19, 958939), (23, 792167), (173, 105317), (241, 75601), (437, 41693), (3287, 5543), (3979, 4579)]