20406438

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 50097600

約数和(自身を除く): 29691162

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 41, 54, 78, 82, 117, 123, 234, 246, 351, 369, 533, 702, 709, 738, 1066, 1107, 1418, 1599, 2127, 2214, 3198, 4254, 4797, 6381, 9217, 9594, 12762, 14391, 18434, 19143, 27651, 28782, 29069, 38286, 55302, 58138, 82953, 87207, 165906, 174414, 248859, 261621, 377897, 497718, 523242, 755794, 784863, 1133691, 1569726, 2267382, 3401073, 6802146, 10203219, 20406438]

約数ペア:

[(1, 20406438), (2, 10203219), (3, 6802146), (6, 3401073), (9, 2267382), (13, 1569726), (18, 1133691), (26, 784863), (27, 755794), (39, 523242), (41, 497718), (54, 377897), (78, 261621), (82, 248859), (117, 174414), (123, 165906), (234, 87207), (246, 82953), (351, 58138), (369, 55302), (533, 38286), (702, 29069), (709, 28782), (738, 27651), (1066, 19143), (1107, 18434), (1418, 14391), (1599, 12762), (2127, 9594), (2214, 9217), (3198, 6381), (4254, 4797)]