1123456321

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{20759}}^1$

素因数の和:20976

約数の個数: 16

約数和(自身を含む): 1269515520

約数和(自身を除く): 146059199

約数列:

[1, 13, 23, 181, 299, 2353, 4163, 20759, 54119, 269867, 477457, 3757379, 6206941, 48845927, 86419717, 1123456321]

約数ペア:

[(1, 1123456321), (13, 86419717), (23, 48845927), (181, 6206941), (299, 3757379), (2353, 477457), (4163, 269867), (20759, 54119)]