42121215

素因数分解:

$3^4\times 5^1\times {\mathrm{104003}}^1$

素因数の和:104020

約数の個数: 20

約数和(自身を含む): 75506904

約数和(自身を除く): 33385689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 104003, 312009, 520015, 936027, 1560045, 2808081, 4680135, 8424243, 14040405, 42121215]

約数ペア:

[(1, 42121215), (3, 14040405), (5, 8424243), (9, 4680135), (15, 2808081), (27, 1560045), (45, 936027), (81, 520015), (135, 312009), (405, 104003)]