156872989

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{55609}}^1$

素因数の和:55660

約数の個数: 16

約数和(自身を含む): 199306240

約数和(自身を除く): 42433251

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 55609, 389263, 722917, 1723879, 5060419, 12067153, 22410427, 156872989]

約数ペア:

[(1, 156872989), (7, 22410427), (13, 12067153), (31, 5060419), (91, 1723879), (217, 722917), (403, 389263), (2821, 55609)]