20835285

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81707}}^1$

素因数の和:81732

約数の個数: 16

約数和(自身を含む): 35297856

約数和(自身を除く): 14462571

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81707, 245121, 408535, 1225605, 1389019, 4167057, 6945095, 20835285]

約数ペア:

[(1, 20835285), (3, 6945095), (5, 4167057), (15, 1389019), (17, 1225605), (51, 408535), (85, 245121), (255, 81707)]