16872513

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:906

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 10775487

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 863, 931, 1029, 2589, 2793, 6041, 6517, 16397, 18123, 19551, 42287, 49191, 114779, 126861, 296009, 344337, 803453, 888027, 2410359, 5624171, 16872513]

約数ペア:

[(1, 16872513), (3, 5624171), (7, 2410359), (19, 888027), (21, 803453), (49, 344337), (57, 296009), (133, 126861), (147, 114779), (343, 49191), (399, 42287), (863, 19551), (931, 18123), (1029, 16397), (2589, 6517), (2793, 6041)]