155138921

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1\times {\mathrm{863}}^1$

素因数の和:1352

約数の個数: 16

約数和(自身を含む): 180845568

約数和(自身を除く): 25706647

約数列:

[1, 7, 61, 421, 427, 863, 2947, 6041, 25681, 52643, 179767, 363323, 368501, 2543261, 22162703, 155138921]

約数ペア:

[(1, 155138921), (7, 22162703), (61, 2543261), (421, 368501), (427, 363323), (863, 179767), (2947, 52643), (6041, 25681)]