171781489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 199704960

約数和(自身を除く): 27923471

約数列:

[1, 11, 19, 181, 209, 239, 361, 1991, 2629, 3439, 3971, 4541, 37829, 43259, 49951, 65341, 86279, 475849, 718751, 821921, 949069, 9041131, 15616499, 171781489]

約数ペア:

[(1, 171781489), (11, 15616499), (19, 9041131), (181, 949069), (209, 821921), (239, 718751), (361, 475849), (1991, 86279), (2629, 65341), (3439, 49951), (3971, 43259), (4541, 37829)]