20256974

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{1051}}^1$

素因数の和:1495

約数の個数: 16

約数和(自身を含む): 31812480

約数和(自身を除く): 11555506

約数列:

[1, 2, 23, 46, 419, 838, 1051, 2102, 9637, 19274, 24173, 48346, 440369, 880738, 10128487, 20256974]

約数ペア:

[(1, 20256974), (2, 10128487), (23, 880738), (46, 440369), (419, 48346), (838, 24173), (1051, 19274), (2102, 9637)]