128721426

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{131617}}^1$

素因数の和:131785

約数の個数: 16

約数和(自身を含む): 259024224

約数和(自身を除く): 130302798

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 131617, 263234, 394851, 789702, 21453571, 42907142, 64360713, 128721426]

約数ペア:

[(1, 128721426), (2, 64360713), (3, 42907142), (6, 21453571), (163, 789702), (326, 394851), (489, 263234), (978, 131617)]