21499496

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{40111}}^1$

素因数の和:40184

約数の個数: 16

約数和(自身を含む): 40914240

約数和(自身を除く): 19414744

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 40111, 80222, 160444, 320888, 2687437, 5374874, 10749748, 21499496]

約数ペア:

[(1, 21499496), (2, 10749748), (4, 5374874), (8, 2687437), (67, 320888), (134, 160444), (268, 80222), (536, 40111)]