21856394

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 17680246

約数列:

[1, 2, 7, 14, 23, 46, 103, 161, 206, 322, 659, 721, 1318, 1442, 2369, 4613, 4738, 9226, 15157, 16583, 30314, 33166, 67877, 106099, 135754, 212198, 475139, 950278, 1561171, 3122342, 10928197, 21856394]

約数ペア:

[(1, 21856394), (2, 10928197), (7, 3122342), (14, 1561171), (23, 950278), (46, 475139), (103, 212198), (161, 135754), (206, 106099), (322, 67877), (659, 33166), (721, 30314), (1318, 16583), (1442, 15157), (2369, 9226), (4613, 4738)]