21236978

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89231}}^1$

素因数の和:89257

約数の個数: 16

約数和(自身を含む): 38548224

約数和(自身を除く): 17311246

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89231, 178462, 624617, 1249234, 1516927, 3033854, 10618489, 21236978]

約数ペア:

[(1, 21236978), (2, 10618489), (7, 3033854), (14, 1516927), (17, 1249234), (34, 624617), (119, 178462), (238, 89231)]