21954653

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 27014400

約数和(自身を除く): 5059747

約数列:

[1, 7, 29, 37, 79, 203, 259, 553, 1073, 1369, 2291, 2923, 7511, 9583, 16037, 20461, 39701, 84767, 108151, 277907, 593369, 757057, 3136379, 21954653]

約数ペア:

[(1, 21954653), (7, 3136379), (29, 757057), (37, 593369), (79, 277907), (203, 108151), (259, 84767), (553, 39701), (1073, 20461), (1369, 16037), (2291, 9583), (2923, 7511)]