20890095

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 35195904

約数和(自身を除く): 14305809

約数列:

[1, 3, 5, 15, 23, 69, 115, 151, 345, 401, 453, 755, 1203, 2005, 2265, 3473, 6015, 9223, 10419, 17365, 27669, 46115, 52095, 60551, 138345, 181653, 302755, 908265, 1392673, 4178019, 6963365, 20890095]

約数ペア:

[(1, 20890095), (3, 6963365), (5, 4178019), (15, 1392673), (23, 908265), (69, 302755), (115, 181653), (151, 138345), (345, 60551), (401, 52095), (453, 46115), (755, 27669), (1203, 17365), (2005, 10419), (2265, 9223), (3473, 6015)]