18109490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{258707}}^1$

素因数の和:258721

約数の個数: 16

約数和(自身を含む): 37253952

約数和(自身を除く): 19144462

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 258707, 517414, 1293535, 1810949, 2587070, 3621898, 9054745, 18109490]

約数ペア:

[(1, 18109490), (2, 9054745), (5, 3621898), (7, 2587070), (10, 1810949), (14, 1293535), (35, 517414), (70, 258707)]