21907585

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{103}}^2$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 30853440

約数和(自身を除く): 8945855

約数列:

[1, 5, 7, 35, 59, 103, 295, 413, 515, 721, 2065, 3605, 6077, 10609, 30385, 42539, 53045, 74263, 212695, 371315, 625931, 3129655, 4381517, 21907585]

約数ペア:

[(1, 21907585), (5, 4381517), (7, 3129655), (35, 625931), (59, 371315), (103, 212695), (295, 74263), (413, 53045), (515, 42539), (721, 30385), (2065, 10609), (3605, 6077)]