16491447

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3907}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 27637376

約数和(自身を除く): 11145929

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 3907, 4221, 11721, 27349, 35163, 82047, 246141, 261769, 785307, 1832383, 2355921, 5497149, 16491447]

約数ペア:

[(1, 16491447), (3, 5497149), (7, 2355921), (9, 1832383), (21, 785307), (63, 261769), (67, 246141), (201, 82047), (469, 35163), (603, 27349), (1407, 11721), (3907, 4221)]