21907067

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^3$

素因数の和:85

約数の個数: 32

約数和(自身を含む): 29232000

約数和(自身を除く): 7324933

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 289, 343, 637, 833, 1547, 2023, 3757, 4459, 4913, 5831, 10829, 14161, 26299, 34391, 63869, 75803, 99127, 184093, 240737, 447083, 1288651, 1685159, 3129581, 21907067]

約数ペア:

[(1, 21907067), (7, 3129581), (13, 1685159), (17, 1288651), (49, 447083), (91, 240737), (119, 184093), (221, 99127), (289, 75803), (343, 63869), (637, 34391), (833, 26299), (1547, 14161), (2023, 10829), (3757, 5831), (4459, 4913)]