16981818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9403}}^1$

素因数の和:9458

約数の個数: 32

約数和(自身を含む): 39722496

約数和(自身を除く): 22740678

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 9403, 18806, 28209, 56418, 65821, 131642, 197463, 394926, 404329, 808658, 1212987, 2425974, 2830303, 5660606, 8490909, 16981818]

約数ペア:

[(1, 16981818), (2, 8490909), (3, 5660606), (6, 2830303), (7, 2425974), (14, 1212987), (21, 808658), (42, 404329), (43, 394926), (86, 197463), (129, 131642), (258, 65821), (301, 56418), (602, 28209), (903, 18806), (1806, 9403)]