18894628

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{367}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 33858944

約数和(自身を除く): 14964316

約数列:

[1, 2, 4, 61, 122, 211, 244, 367, 422, 734, 844, 1468, 12871, 22387, 25742, 44774, 51484, 77437, 89548, 154874, 309748, 4723657, 9447314, 18894628]

約数ペア:

[(1, 18894628), (2, 9447314), (4, 4723657), (61, 309748), (122, 154874), (211, 89548), (244, 77437), (367, 51484), (422, 44774), (734, 25742), (844, 22387), (1468, 12871)]