19281243

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1091}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 26522496

約数和(自身を除く): 7241253

約数列:

[1, 3, 43, 129, 137, 411, 1091, 3273, 5891, 17673, 46913, 140739, 149467, 448401, 6427081, 19281243]

約数ペア:

[(1, 19281243), (3, 6427081), (43, 448401), (129, 149467), (137, 140739), (411, 46913), (1091, 17673), (3273, 5891)]