21419307

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26153}}^1$

素因数の和:26179

約数の個数: 24

約数和(自身を含む): 38080224

約数和(自身を除く): 16660917

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26153, 78459, 183071, 235377, 339989, 549213, 1019967, 1647639, 2379923, 3059901, 7139769, 21419307]

約数ペア:

[(1, 21419307), (3, 7139769), (7, 3059901), (9, 2379923), (13, 1647639), (21, 1019967), (39, 549213), (63, 339989), (91, 235377), (117, 183071), (273, 78459), (819, 26153)]