20409915

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9011}}^1$

素因数の和:9170

約数の個数: 16

約数和(自身を含む): 32875776

約数和(自身を除く): 12465861

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 9011, 27033, 45055, 135165, 1360661, 4081983, 6803305, 20409915]

約数ペア:

[(1, 20409915), (3, 6803305), (5, 4081983), (15, 1360661), (151, 135165), (453, 45055), (755, 27033), (2265, 9011)]