20607777

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 32989440

約数和(自身を除く): 12381663

約数列:

[1, 3, 9, 27, 29, 31, 81, 87, 93, 261, 279, 283, 783, 837, 849, 899, 2349, 2511, 2547, 2697, 7641, 8091, 8207, 8773, 22923, 24273, 24621, 26319, 72819, 73863, 78957, 221589, 236871, 254417, 664767, 710613, 763251, 2289753, 6869259, 20607777]

約数ペア:

[(1, 20607777), (3, 6869259), (9, 2289753), (27, 763251), (29, 710613), (31, 664767), (81, 254417), (87, 236871), (93, 221589), (261, 78957), (279, 73863), (283, 72819), (783, 26319), (837, 24621), (849, 24273), (899, 22923), (2349, 8773), (2511, 8207), (2547, 8091), (2697, 7641)]