21198896

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18661}}^1$

素因数の和:18740

約数の個数: 20

約数和(自身を含む): 41653584

約数和(自身を除く): 20454688

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18661, 37322, 74644, 149288, 298576, 1324931, 2649862, 5299724, 10599448, 21198896]

約数ペア:

[(1, 21198896), (2, 10599448), (4, 5299724), (8, 2649862), (16, 1324931), (71, 298576), (142, 149288), (284, 74644), (568, 37322), (1136, 18661)]