21791478

素因数分解:

$2^1\times 3^1\times {\mathrm{563}}^1\times {\mathrm{6451}}^1$

素因数の和:7019

約数の個数: 16

約数和(自身を含む): 43667136

約数和(自身を除く): 21875658

約数列:

[1, 2, 3, 6, 563, 1126, 1689, 3378, 6451, 12902, 19353, 38706, 3631913, 7263826, 10895739, 21791478]

約数ペア:

[(1, 21791478), (2, 10895739), (3, 7263826), (6, 3631913), (563, 38706), (1126, 19353), (1689, 12902), (3378, 6451)]