281273421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{655649}}^1$

素因数の和:655676

約数の個数: 16

約数和(自身を含む): 440596800

約数和(自身を除く): 159323379

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 655649, 1966947, 7212139, 8523437, 21636417, 25570311, 93757807, 281273421]

約数ペア:

[(1, 281273421), (3, 93757807), (11, 25570311), (13, 21636417), (33, 8523437), (39, 7212139), (143, 1966947), (429, 655649)]