16815967

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 20946816

約数和(自身を除く): 4130849

約数列:

[1, 7, 23, 43, 49, 161, 301, 347, 989, 1127, 2107, 2429, 6923, 7981, 14921, 17003, 48461, 55867, 104447, 343183, 391069, 731129, 2402281, 16815967]

約数ペア:

[(1, 16815967), (7, 2402281), (23, 731129), (43, 391069), (49, 343183), (161, 104447), (301, 55867), (347, 48461), (989, 17003), (1127, 14921), (2107, 7981), (2429, 6923)]