20996811

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1619}}^1$

素因数の和:1767

約数の個数: 24

約数和(自身を含む): 33359040

約数和(自身を除く): 12362229

約数列:

[1, 3, 9, 11, 33, 99, 131, 393, 1179, 1441, 1619, 4323, 4857, 12969, 14571, 17809, 53427, 160281, 212089, 636267, 1908801, 2332979, 6998937, 20996811]

約数ペア:

[(1, 20996811), (3, 6998937), (9, 2332979), (11, 1908801), (33, 636267), (99, 212089), (131, 160281), (393, 53427), (1179, 17809), (1441, 14571), (1619, 12969), (4323, 4857)]