28886641

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 4809359

約数列:

[1, 7, 89, 199, 233, 623, 1393, 1631, 17711, 20737, 46367, 123977, 145159, 324569, 4126663, 28886641]

約数ペア:

[(1, 28886641), (7, 4126663), (89, 324569), (199, 145159), (233, 123977), (623, 46367), (1393, 20737), (1631, 17711)]