7957989

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4037

約数の個数: 24

約数和(自身を含む): 13110552

約数和(自身を除く): 5152563

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 4001, 12003, 36009, 52013, 68017, 156039, 204051, 468117, 612153, 884221, 2652663, 7957989]

約数ペア:

[(1, 7957989), (3, 2652663), (9, 884221), (13, 612153), (17, 468117), (39, 204051), (51, 156039), (117, 68017), (153, 52013), (221, 36009), (663, 12003), (1989, 4001)]