6439905

素因数分解:

$3^4\times 5^1\times {\mathrm{15901}}^1$

素因数の和:15918

約数の個数: 20

約数和(自身を含む): 11544852

約数和(自身を除く): 5104947

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 15901, 47703, 79505, 143109, 238515, 429327, 715545, 1287981, 2146635, 6439905]

約数ペア:

[(1, 6439905), (3, 2146635), (5, 1287981), (9, 715545), (15, 429327), (27, 238515), (45, 143109), (81, 79505), (135, 47703), (405, 15901)]