21026243

素因数分解:

$7^3\times {\mathrm{59}}^1\times {\mathrm{1039}}^1$

素因数の和:1119

約数の個数: 16

約数和(自身を含む): 24960000

約数和(自身を除く): 3933757

約数列:

[1, 7, 49, 59, 343, 413, 1039, 2891, 7273, 20237, 50911, 61301, 356377, 429107, 3003749, 21026243]

約数ペア:

[(1, 21026243), (7, 3003749), (49, 429107), (59, 356377), (343, 61301), (413, 50911), (1039, 20237), (2891, 7273)]