20387265

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9001}}^1$

素因数の和:9160

約数の個数: 16

約数和(自身を含む): 32839296

約数和(自身を除く): 12452031

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 9001, 27003, 45005, 135015, 1359151, 4077453, 6795755, 20387265]

約数ペア:

[(1, 20387265), (3, 6795755), (5, 4077453), (15, 1359151), (151, 135015), (453, 45005), (755, 27003), (2265, 9001)]