21892178

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142157}}^1$

素因数の和:142177

約数の個数: 16

約数和(自身を含む): 40941504

約数和(自身を除く): 19049326

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142157, 284314, 995099, 1563727, 1990198, 3127454, 10946089, 21892178]

約数ペア:

[(1, 21892178), (2, 10946089), (7, 3127454), (11, 1990198), (14, 1563727), (22, 995099), (77, 284314), (154, 142157)]