56053215

素因数分解:

$3^4\times 5^1\times {\mathrm{138403}}^1$

素因数の和:138420

約数の個数: 20

約数和(自身を含む): 100481304

約数和(自身を除く): 44428089

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 138403, 415209, 692015, 1245627, 2076045, 3736881, 6228135, 11210643, 18684405, 56053215]

約数ペア:

[(1, 56053215), (3, 18684405), (5, 11210643), (9, 6228135), (15, 3736881), (27, 2076045), (45, 1245627), (81, 692015), (135, 415209), (405, 138403)]