21492898

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19433}}^1$

素因数の和:19521

約数の個数: 16

約数和(自身を含む): 37313280

約数和(自身を除く): 15820382

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19433, 38866, 136031, 272062, 1535207, 3070414, 10746449, 21492898]

約数ペア:

[(1, 21492898), (2, 10746449), (7, 3070414), (14, 1535207), (79, 272062), (158, 136031), (553, 38866), (1106, 19433)]