19773808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:793

約数の個数: 40

約数和(自身を含む): 40216176

約数和(自身を除く): 20442368

約数列:

[1, 2, 4, 8, 16, 41, 43, 82, 86, 164, 172, 328, 344, 656, 688, 701, 1402, 1763, 2804, 3526, 5608, 7052, 11216, 14104, 28208, 28741, 30143, 57482, 60286, 114964, 120572, 229928, 241144, 459856, 482288, 1235863, 2471726, 4943452, 9886904, 19773808]

約数ペア:

[(1, 19773808), (2, 9886904), (4, 4943452), (8, 2471726), (16, 1235863), (41, 482288), (43, 459856), (82, 241144), (86, 229928), (164, 120572), (172, 114964), (328, 60286), (344, 57482), (656, 30143), (688, 28741), (701, 28208), (1402, 14104), (1763, 11216), (2804, 7052), (3526, 5608)]