18943065

素因数分解:

$3^6\times 5^1\times {\mathrm{5197}}^1$

素因数の和:5220

約数の個数: 28

約数和(自身を含む): 34088484

約数和(自身を除く): 15145419

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5197, 15591, 25985, 46773, 77955, 140319, 233865, 420957, 701595, 1262871, 2104785, 3788613, 6314355, 18943065]

約数ペア:

[(1, 18943065), (3, 6314355), (5, 3788613), (9, 2104785), (15, 1262871), (27, 701595), (45, 420957), (81, 233865), (135, 140319), (243, 77955), (405, 46773), (729, 25985), (1215, 15591), (3645, 5197)]