20157188317

素因数分解:

$7^1\times {\mathrm{223}}^1\times {\mathrm{1741}}^1\times {\mathrm{7417}}^1$

素因数の和:9388

約数の個数: 16

約数和(自身を含む): 23156503552

約数和(自身を除く): 2999315235

約数列:

[1, 7, 223, 1561, 1741, 7417, 12187, 51919, 388243, 1653991, 2717701, 11577937, 12912997, 90390979, 2879598331, 20157188317]

約数ペア:

[(1, 20157188317), (7, 2879598331), (223, 90390979), (1561, 12912997), (1741, 11577937), (7417, 2717701), (12187, 1653991), (51919, 388243)]