21850871

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 25766208

約数和(自身を除く): 3915337

約数列:

[1, 7, 61, 73, 427, 511, 701, 4453, 4907, 31171, 42761, 51173, 299327, 358211, 3121553, 21850871]

約数ペア:

[(1, 21850871), (7, 3121553), (61, 358211), (73, 299327), (427, 51173), (511, 42761), (701, 31171), (4453, 4907)]