20965797

素因数分解:

$3^5\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 36

約数和(自身を含む): 33284160

約数和(自身を除く): 12318363

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 239, 243, 361, 513, 717, 1083, 1539, 2151, 3249, 4541, 4617, 6453, 9747, 13623, 19359, 29241, 40869, 58077, 86279, 87723, 122607, 258837, 367821, 776511, 1103463, 2329533, 6988599, 20965797]

約数ペア:

[(1, 20965797), (3, 6988599), (9, 2329533), (19, 1103463), (27, 776511), (57, 367821), (81, 258837), (171, 122607), (239, 87723), (243, 86279), (361, 58077), (513, 40869), (717, 29241), (1083, 19359), (1539, 13623), (2151, 9747), (3249, 6453), (4541, 4617)]