21238796438

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{3851}}^1\times {\mathrm{38839}}^1$

素因数の和:42763

約数の個数: 16

約数和(自身を含む): 32316122880

約数和(自身を除く): 11077326442

約数列:

[1, 2, 71, 142, 3851, 7702, 38839, 77678, 273421, 546842, 2757569, 5515138, 149568989, 299137978, 10619398219, 21238796438]

約数ペア:

[(1, 21238796438), (2, 10619398219), (71, 299137978), (142, 149568989), (3851, 5515138), (7702, 2757569), (38839, 546842), (77678, 273421)]