21789402

素因数分解:

$2^1\times 3^1\times {\mathrm{157}}^1\times {\mathrm{23131}}^1$

素因数の和:23293

約数の個数: 16

約数和(自身を含む): 43858272

約数和(自身を除く): 22068870

約数列:

[1, 2, 3, 6, 157, 314, 471, 942, 23131, 46262, 69393, 138786, 3631567, 7263134, 10894701, 21789402]

約数ペア:

[(1, 21789402), (2, 10894701), (3, 7263134), (6, 3631567), (157, 138786), (314, 69393), (471, 46262), (942, 23131)]