20899893

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43271}}^1$

素因数の和:43304

約数の個数: 16

約数和(自身を含む): 33232896

約数和(自身を除く): 12333003

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43271, 129813, 302897, 908691, 995233, 2985699, 6966631, 20899893]

約数ペア:

[(1, 20899893), (3, 6966631), (7, 2985699), (21, 995233), (23, 908691), (69, 302897), (161, 129813), (483, 43271)]