20508825

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8821}}^1$

素因数の和:8865

約数の個数: 24

約数和(自身を含む): 35005696

約数和(自身を除く): 14496871

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 8821, 26463, 44105, 132315, 220525, 273451, 661575, 820353, 1367255, 4101765, 6836275, 20508825]

約数ペア:

[(1, 20508825), (3, 6836275), (5, 4101765), (15, 1367255), (25, 820353), (31, 661575), (75, 273451), (93, 220525), (155, 132315), (465, 44105), (775, 26463), (2325, 8821)]