399945791

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{9059}}^1$

素因数の和:9143

約数の個数: 24

約数和(自身を含む): 501960240

約数和(自身を除く): 102014449

約数列:

[1, 7, 17, 49, 53, 119, 371, 833, 901, 2597, 6307, 9059, 44149, 63413, 154003, 443891, 480127, 1078021, 3360889, 7546147, 8162159, 23526223, 57135113, 399945791]

約数ペア:

[(1, 399945791), (7, 57135113), (17, 23526223), (49, 8162159), (53, 7546147), (119, 3360889), (371, 1078021), (833, 480127), (901, 443891), (2597, 154003), (6307, 63413), (9059, 44149)]