20335785

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^2$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 33202560

約数和(自身を除く): 12866775

約数列:

[1, 3, 5, 15, 79, 131, 237, 393, 395, 655, 1185, 1965, 10349, 17161, 31047, 51483, 51745, 85805, 155235, 257415, 1355719, 4067157, 6778595, 20335785]

約数ペア:

[(1, 20335785), (3, 6778595), (5, 4067157), (15, 1355719), (79, 257415), (131, 155235), (237, 85805), (393, 51745), (395, 51483), (655, 31047), (1185, 17161), (1965, 10349)]