21705454

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3767}}^1$

素因数の和:3879

約数の個数: 16

約数和(自身を含む): 33821568

約数和(自身を除く): 12116114

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3767, 5762, 7534, 161981, 252389, 323962, 504778, 10852727, 21705454]

約数ペア:

[(1, 21705454), (2, 10852727), (43, 504778), (67, 323962), (86, 252389), (134, 161981), (2881, 7534), (3767, 5762)]