20575071

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 34358688

約数和(自身を除く): 13783617

約数列:

[1, 3, 9, 11, 33, 37, 41, 99, 111, 123, 137, 333, 369, 407, 411, 451, 1221, 1233, 1353, 1507, 1517, 3663, 4059, 4521, 4551, 5069, 5617, 13563, 13653, 15207, 16687, 16851, 45621, 50061, 50553, 55759, 61787, 150183, 167277, 185361, 207829, 501831, 556083, 623487, 1870461, 2286119, 6858357, 20575071]

約数ペア:

[(1, 20575071), (3, 6858357), (9, 2286119), (11, 1870461), (33, 623487), (37, 556083), (41, 501831), (99, 207829), (111, 185361), (123, 167277), (137, 150183), (333, 61787), (369, 55759), (407, 50553), (411, 50061), (451, 45621), (1221, 16851), (1233, 16687), (1353, 15207), (1507, 13653), (1517, 13563), (3663, 5617), (4059, 5069), (4521, 4551)]