21398262

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{82939}}^1$

素因数の和:82987

約数の個数: 16

約数和(自身を含む): 43792320

約数和(自身を除く): 22394058

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 82939, 165878, 248817, 497634, 3566377, 7132754, 10699131, 21398262]

約数ペア:

[(1, 21398262), (2, 10699131), (3, 7132754), (6, 3566377), (43, 497634), (86, 248817), (129, 165878), (258, 82939)]