72990057

素因数分解:

$3^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:910

約数の個数: 32

約数和(自身を含む): 114912000

約数和(自身を除く): 41921943

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 343, 623, 797, 1029, 1869, 2391, 4361, 5579, 13083, 16737, 30527, 39053, 70933, 91581, 117159, 212799, 273371, 496531, 820113, 1489593, 3475717, 10427151, 24330019, 72990057]

約数ペア:

[(1, 72990057), (3, 24330019), (7, 10427151), (21, 3475717), (49, 1489593), (89, 820113), (147, 496531), (267, 273371), (343, 212799), (623, 117159), (797, 91581), (1029, 70933), (1869, 39053), (2391, 30527), (4361, 16737), (5579, 13083)]