20018295

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1093}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 38911392

約数和(自身を除く): 18893097

約数列:

[1, 3, 5, 9, 11, 15, 33, 37, 45, 55, 99, 111, 165, 185, 333, 407, 495, 555, 1093, 1221, 1665, 2035, 3279, 3663, 5465, 6105, 9837, 12023, 16395, 18315, 36069, 40441, 49185, 60115, 108207, 121323, 180345, 202205, 363969, 444851, 541035, 606615, 1334553, 1819845, 2224255, 4003659, 6672765, 20018295]

約数ペア:

[(1, 20018295), (3, 6672765), (5, 4003659), (9, 2224255), (11, 1819845), (15, 1334553), (33, 606615), (37, 541035), (45, 444851), (55, 363969), (99, 202205), (111, 180345), (165, 121323), (185, 108207), (333, 60115), (407, 49185), (495, 40441), (555, 36069), (1093, 18315), (1221, 16395), (1665, 12023), (2035, 9837), (3279, 6105), (3663, 5465)]