18921454

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:472

約数の個数: 24

約数和(自身を含む): 30449520

約数和(自身を除く): 11528066

約数列:

[1, 2, 19, 38, 73, 146, 359, 361, 718, 722, 1387, 2774, 6821, 13642, 26207, 26353, 52414, 52706, 129599, 259198, 497933, 995866, 9460727, 18921454]

約数ペア:

[(1, 18921454), (2, 9460727), (19, 995866), (38, 497933), (73, 259198), (146, 129599), (359, 52706), (361, 52414), (718, 26353), (722, 26207), (1387, 13642), (2774, 6821)]