256272021

素因数分解:

$3^2\times {\mathrm{167}}^2\times {\mathrm{1021}}^1$

素因数の和:1361

約数の個数: 18

約数和(自身を含む): 372765302

約数和(自身を除く): 116493281

約数列:

[1, 3, 9, 167, 501, 1021, 1503, 3063, 9189, 27889, 83667, 170507, 251001, 511521, 1534563, 28474669, 85424007, 256272021]

約数ペア:

[(1, 256272021), (3, 85424007), (9, 28474669), (167, 1534563), (501, 511521), (1021, 251001), (1503, 170507), (3063, 83667), (9189, 27889)]