11991190

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{16889}}^1$

素因数の和:16967

約数の個数: 16

約数和(自身を含む): 21889440

約数和(自身を除く): 9898250

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 16889, 33778, 84445, 168890, 1199119, 2398238, 5995595, 11991190]

約数ペア:

[(1, 11991190), (2, 5995595), (5, 2398238), (10, 1199119), (71, 168890), (142, 84445), (355, 33778), (710, 16889)]