19420874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3517}}^1$

素因数の和:3781

約数の個数: 16

約数和(自身を含む): 31915296

約数和(自身を除く): 12494422

約数列:

[1, 2, 11, 22, 251, 502, 2761, 3517, 5522, 7034, 38687, 77374, 882767, 1765534, 9710437, 19420874]

約数ペア:

[(1, 19420874), (2, 9710437), (11, 1765534), (22, 882767), (251, 77374), (502, 38687), (2761, 7034), (3517, 5522)]