220906

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 16

約数和(自身を含む): 391680

約数和(自身を除く): 170774

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 509, 1018, 3563, 7126, 15779, 31558, 110453, 220906]

約数ペア:

[(1, 220906), (2, 110453), (7, 31558), (14, 15779), (31, 7126), (62, 3563), (217, 1018), (434, 509)]