391057919

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1\times {\mathrm{2687}}^1$

素因数の和:3934

約数の個数: 16

約数和(自身を含む): 473776128

約数和(自身を除く): 82718209

約数列:

[1, 7, 17, 119, 1223, 2687, 8561, 18809, 20791, 45679, 145537, 319753, 3286201, 23003407, 55865417, 391057919]

約数ペア:

[(1, 391057919), (7, 55865417), (17, 23003407), (119, 3286201), (1223, 319753), (2687, 145537), (8561, 45679), (18809, 20791)]