21109087

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 23265792

約数和(自身を除く): 2156705

約数列:

[1, 17, 43, 67, 431, 731, 1139, 2881, 7327, 18533, 28877, 48977, 315061, 490909, 1241711, 21109087]

約数ペア:

[(1, 21109087), (17, 1241711), (43, 490909), (67, 315061), (431, 48977), (731, 28877), (1139, 18533), (2881, 7327)]