3808215

素因数分解:

$3^4\times 5^1\times {\mathrm{9403}}^1$

素因数の和:9420

約数の個数: 20

約数和(自身を含む): 6827304

約数和(自身を除く): 3019089

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 9403, 28209, 47015, 84627, 141045, 253881, 423135, 761643, 1269405, 3808215]

約数ペア:

[(1, 3808215), (3, 1269405), (5, 761643), (9, 423135), (15, 253881), (27, 141045), (45, 84627), (81, 47015), (135, 28209), (405, 9403)]