20457345

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13241}}^1$

素因数の和:13352

約数の個数: 16

約数和(自身を含む): 33052032

約数和(自身を除く): 12594687

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13241, 39723, 66205, 198615, 1363823, 4091469, 6819115, 20457345]

約数ペア:

[(1, 20457345), (3, 6819115), (5, 4091469), (15, 1363823), (103, 198615), (309, 66205), (515, 39723), (1545, 13241)]