20811226

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2719}}^1$

素因数の和:2853

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11502374

約数列:

[1, 2, 43, 86, 89, 178, 2719, 3827, 5438, 7654, 116917, 233834, 241991, 483982, 10405613, 20811226]

約数ペア:

[(1, 20811226), (2, 10405613), (43, 483982), (86, 241991), (89, 233834), (178, 116917), (2719, 7654), (3827, 5438)]