20741091

素因数分解:

$3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2539}}^1$

素因数の和:2938

約数の個数: 16

約数和(自身を含む): 31699200

約数和(自身を除く): 10958109

約数列:

[1, 3, 7, 21, 389, 1167, 2539, 2723, 7617, 8169, 17773, 53319, 987671, 2963013, 6913697, 20741091]

約数ペア:

[(1, 20741091), (3, 6913697), (7, 2963013), (21, 987671), (389, 53319), (1167, 17773), (2539, 8169), (2723, 7617)]