20812335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4801}}^1$

素因数の和:4843

約数の個数: 24

約数和(自身を含む): 35381136

約数和(自身を除く): 14568801

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4801, 14403, 24005, 72015, 81617, 244851, 408085, 1224255, 1387489, 4162467, 6937445, 20812335]

約数ペア:

[(1, 20812335), (3, 6937445), (5, 4162467), (15, 1387489), (17, 1224255), (51, 408085), (85, 244851), (255, 81617), (289, 72015), (867, 24005), (1445, 14403), (4335, 4801)]