388759

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 16

約数和(自身を含む): 486400

約数和(自身を除く): 97641

約数列:

[1, 7, 19, 37, 79, 133, 259, 553, 703, 1501, 2923, 4921, 10507, 20461, 55537, 388759]

約数ペア:

[(1, 388759), (7, 55537), (19, 20461), (37, 10507), (79, 4921), (133, 2923), (259, 1501), (553, 703)]