21397938

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{25657}}^1$

素因数の和:25801

約数の個数: 16

約数和(自身を含む): 43105440

約数和(自身を除く): 21707502

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 25657, 51314, 76971, 153942, 3566323, 7132646, 10698969, 21397938]

約数ペア:

[(1, 21397938), (2, 10698969), (3, 7132646), (6, 3566323), (139, 153942), (278, 76971), (417, 51314), (834, 25657)]