428259

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 16

約数和(自身を含む): 627200

約数和(自身を除く): 198941

約数列:

[1, 3, 13, 39, 79, 139, 237, 417, 1027, 1807, 3081, 5421, 10981, 32943, 142753, 428259]

約数ペア:

[(1, 428259), (3, 142753), (13, 32943), (39, 10981), (79, 5421), (139, 3081), (237, 1807), (417, 1027)]