18069723

素因数分解:

$3^6\times 7^1\times {\mathrm{3541}}^1$

素因数の和:3566

約数の個数: 28

約数和(自身を含む): 30971248

約数和(自身を除く): 12901525

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3541, 5103, 10623, 24787, 31869, 74361, 95607, 223083, 286821, 669249, 860463, 2007747, 2581389, 6023241, 18069723]

約数ペア:

[(1, 18069723), (3, 6023241), (7, 2581389), (9, 2007747), (21, 860463), (27, 669249), (63, 286821), (81, 223083), (189, 95607), (243, 74361), (567, 31869), (729, 24787), (1701, 10623), (3541, 5103)]