21198551

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 23874048

約数和(自身を除く): 2675497

約数列:

[1, 11, 47, 131, 313, 517, 1441, 3443, 6157, 14711, 41003, 67727, 161821, 451033, 1927141, 21198551]

約数ペア:

[(1, 21198551), (11, 1927141), (47, 451033), (131, 161821), (313, 67727), (517, 41003), (1441, 14711), (3443, 6157)]