640167

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 981120

約数和(自身を除く): 340953

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 1021, 3063, 11231, 19399, 33693, 58197, 213389, 640167]

約数ペア:

[(1, 640167), (3, 213389), (11, 58197), (19, 33693), (33, 19399), (57, 11231), (209, 3063), (627, 1021)]