21111224

素因数分解:

$2^3\times {\mathrm{313}}^1\times {\mathrm{8431}}^1$

素因数の和:8750

約数の個数: 16

約数和(自身を含む): 39714720

約数和(自身を除く): 18603496

約数列:

[1, 2, 4, 8, 313, 626, 1252, 2504, 8431, 16862, 33724, 67448, 2638903, 5277806, 10555612, 21111224]

約数ペア:

[(1, 21111224), (2, 10555612), (4, 5277806), (8, 2638903), (313, 67448), (626, 33724), (1252, 16862), (2504, 8431)]