21556982

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8467}}^1$

素因数の和:8555

約数の個数: 16

約数和(自身を含む): 34549440

約数和(自身を除く): 12992458

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8467, 16934, 160873, 321746, 567289, 1134578, 10778491, 21556982]

約数ペア:

[(1, 21556982), (2, 10778491), (19, 1134578), (38, 567289), (67, 321746), (134, 160873), (1273, 16934), (2546, 8467)]