28002821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9829}}^1$

素因数の和:9884

約数の個数: 16

約数和(自身を含む): 35859840

約数和(自身を除く): 7857019

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 9829, 68803, 108119, 363673, 756833, 2545711, 4000403, 28002821]

約数ペア:

[(1, 28002821), (7, 4000403), (11, 2545711), (37, 756833), (77, 363673), (259, 108119), (407, 68803), (2849, 9829)]