21804526

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3571}}^1$

素因数の和:3687

約数の個数: 16

約数和(自身を含む): 33948288

約数和(自身を除く): 12143762

約数列:

[1, 2, 43, 71, 86, 142, 3053, 3571, 6106, 7142, 153553, 253541, 307106, 507082, 10902263, 21804526]

約数ペア:

[(1, 21804526), (2, 10902263), (43, 507082), (71, 307106), (86, 253541), (142, 153553), (3053, 7142), (3571, 6106)]