18881081998

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{6871}}^1\times {\mathrm{20507}}^1$

素因数の和:27447

約数の個数: 16

約数和(自身を含む): 28749919104

約数和(自身を除く): 9868837106

約数列:

[1, 2, 67, 134, 6871, 13742, 20507, 41014, 460357, 920714, 1373969, 2747938, 140903597, 281807194, 9440540999, 18881081998]

約数ペア:

[(1, 18881081998), (2, 9440540999), (67, 281807194), (134, 140903597), (6871, 2747938), (13742, 1373969), (20507, 920714), (41014, 460357)]