21030795

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1777}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 36612576

約数和(自身を除く): 15581781

約数列:

[1, 3, 5, 9, 15, 45, 263, 789, 1315, 1777, 2367, 3945, 5331, 8885, 11835, 15993, 26655, 79965, 467351, 1402053, 2336755, 4206159, 7010265, 21030795]

約数ペア:

[(1, 21030795), (3, 7010265), (5, 4206159), (9, 2336755), (15, 1402053), (45, 467351), (263, 79965), (789, 26655), (1315, 15993), (1777, 11835), (2367, 8885), (3945, 5331)]