18871339

素因数分解:

${\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:326

約数の個数: 16

約数和(自身を含む): 20388672

約数和(自身を除く): 1517333

約数列:

[1, 23, 53, 113, 137, 1219, 2599, 3151, 5989, 7261, 15481, 137747, 167003, 356063, 820493, 18871339]

約数ペア:

[(1, 18871339), (23, 820493), (53, 356063), (113, 167003), (137, 137747), (1219, 15481), (2599, 7261), (3151, 5989)]