21771438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{279121}}^1$

素因数の和:279139

約数の個数: 16

約数和(自身を含む): 46892496

約数和(自身を除く): 25121058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 279121, 558242, 837363, 1674726, 3628573, 7257146, 10885719, 21771438]

約数ペア:

[(1, 21771438), (2, 10885719), (3, 7257146), (6, 3628573), (13, 1674726), (26, 837363), (39, 558242), (78, 279121)]