21829912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2657}}^1$

素因数の和:2755

約数の個数: 32

約数和(自身を含む): 44654400

約数和(自身を除く): 22824488

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2657, 4108, 5314, 8216, 10628, 21256, 34541, 69082, 138164, 209903, 276328, 419806, 839612, 1679224, 2728739, 5457478, 10914956, 21829912]

約数ペア:

[(1, 21829912), (2, 10914956), (4, 5457478), (8, 2728739), (13, 1679224), (26, 839612), (52, 419806), (79, 276328), (104, 209903), (158, 138164), (316, 69082), (632, 34541), (1027, 21256), (2054, 10628), (2657, 8216), (4108, 5314)]