21910105

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2417}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 31424328

約数和(自身を除く): 9514223

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 2417, 9065, 12085, 16919, 84595, 89429, 118433, 447145, 592165, 626003, 3130015, 4382021, 21910105]

約数ペア:

[(1, 21910105), (5, 4382021), (7, 3130015), (35, 626003), (37, 592165), (49, 447145), (185, 118433), (245, 89429), (259, 84595), (1295, 16919), (1813, 12085), (2417, 9065)]