18978886374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{451878247}}^1$

素因数の和:451878259

約数の個数: 16

約数和(自身を含む): 43380311808

約数和(自身を除く): 24401425434

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 451878247, 903756494, 1355634741, 2711269482, 3163147729, 6326295458, 9489443187, 18978886374]

約数ペア:

[(1, 18978886374), (2, 9489443187), (3, 6326295458), (6, 3163147729), (7, 2711269482), (14, 1355634741), (21, 903756494), (42, 451878247)]