11503215

素因数分解:

$3^4\times 5^1\times {\mathrm{28403}}^1$

素因数の和:28420

約数の個数: 20

約数和(自身を含む): 20621304

約数和(自身を除く): 9118089

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 28403, 85209, 142015, 255627, 426045, 766881, 1278135, 2300643, 3834405, 11503215]

約数ペア:

[(1, 11503215), (3, 3834405), (5, 2300643), (9, 1278135), (15, 766881), (27, 426045), (45, 255627), (81, 142015), (135, 85209), (405, 28403)]