21789918

素因数分解:

$2^1\times 3^3\times {\mathrm{139}}^1\times {\mathrm{2903}}^1$

素因数の和:3053

約数の個数: 32

約数和(自身を含む): 48787200

約数和(自身を除く): 26997282

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 139, 278, 417, 834, 1251, 2502, 2903, 3753, 5806, 7506, 8709, 17418, 26127, 52254, 78381, 156762, 403517, 807034, 1210551, 2421102, 3631653, 7263306, 10894959, 21789918]

約数ペア:

[(1, 21789918), (2, 10894959), (3, 7263306), (6, 3631653), (9, 2421102), (18, 1210551), (27, 807034), (54, 403517), (139, 156762), (278, 78381), (417, 52254), (834, 26127), (1251, 17418), (2502, 8709), (2903, 7506), (3753, 5806)]