20004789

素因数分解:

$3^1\times 7^3\times {\mathrm{19441}}^1$

素因数の和:19465

約数の個数: 16

約数和(自身を含む): 31107200

約数和(自身を除く): 11102411

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19441, 58323, 136087, 408261, 952609, 2857827, 6668263, 20004789]

約数ペア:

[(1, 20004789), (3, 6668263), (7, 2857827), (21, 952609), (49, 408261), (147, 136087), (343, 58323), (1029, 19441)]