20512911

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{1021}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 28272608

約数和(自身を除く): 7759697

約数列:

[1, 3, 37, 111, 181, 543, 1021, 3063, 6697, 20091, 37777, 113331, 184801, 554403, 6837637, 20512911]

約数ペア:

[(1, 20512911), (3, 6837637), (37, 554403), (111, 184801), (181, 113331), (543, 37777), (1021, 20091), (3063, 6697)]