21028174

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 24

約数和(自身を含む): 34012440

約数和(自身を除く): 12984266

約数列:

[1, 2, 19, 38, 53, 106, 197, 394, 1007, 2014, 2809, 3743, 5618, 7486, 10441, 20882, 53371, 106742, 198379, 396758, 553373, 1106746, 10514087, 21028174]

約数ペア:

[(1, 21028174), (2, 10514087), (19, 1106746), (38, 553373), (53, 396758), (106, 198379), (197, 106742), (394, 53371), (1007, 20882), (2014, 10441), (2809, 7486), (3743, 5618)]