21828289

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{3109}}^1$

素因数の和:3192

約数の個数: 16

約数和(自身を含む): 26870400

約数和(自身を除く): 5042111

約数列:

[1, 7, 17, 59, 119, 413, 1003, 3109, 7021, 21763, 52853, 183431, 369971, 1284017, 3118327, 21828289]

約数ペア:

[(1, 21828289), (7, 3118327), (17, 1284017), (59, 369971), (119, 183431), (413, 52853), (1003, 21763), (3109, 7021)]