21931419

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{863}}^1$

素因数の和:1106

約数の個数: 16

約数和(自身を含む): 30108672

約数和(自身を除く): 8177253

約数列:

[1, 3, 43, 129, 197, 591, 863, 2589, 8471, 25413, 37109, 111327, 170011, 510033, 7310473, 21931419]

約数ペア:

[(1, 21931419), (3, 7310473), (43, 510033), (129, 170011), (197, 111327), (591, 37109), (863, 25413), (2589, 8471)]