21498368

素因数分解:

$2^9\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:428

約数の個数: 40

約数和(自身を含む): 43375200

約数和(自身を除く): 21876832

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 199, 211, 256, 398, 422, 512, 796, 844, 1592, 1688, 3184, 3376, 6368, 6752, 12736, 13504, 25472, 27008, 41989, 50944, 54016, 83978, 101888, 108032, 167956, 335912, 671824, 1343648, 2687296, 5374592, 10749184, 21498368]

約数ペア:

[(1, 21498368), (2, 10749184), (4, 5374592), (8, 2687296), (16, 1343648), (32, 671824), (64, 335912), (128, 167956), (199, 108032), (211, 101888), (256, 83978), (398, 54016), (422, 50944), (512, 41989), (796, 27008), (844, 25472), (1592, 13504), (1688, 12736), (3184, 6752), (3376, 6368)]