19310221

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1103}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 22998528

約数和(自身を除く): 3688307

約数列:

[1, 7, 41, 61, 287, 427, 1103, 2501, 7721, 17507, 45223, 67283, 316561, 470981, 2758603, 19310221]

約数ペア:

[(1, 19310221), (7, 2758603), (41, 470981), (61, 316561), (287, 67283), (427, 45223), (1103, 17507), (2501, 7721)]