16639763

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 20779920

約数和(自身を除く): 4140157

約数列:

[1, 7, 19, 49, 61, 133, 293, 427, 931, 1159, 2051, 2989, 5567, 8113, 14357, 17873, 38969, 56791, 125111, 272783, 339587, 875777, 2377109, 16639763]

約数ペア:

[(1, 16639763), (7, 2377109), (19, 875777), (49, 339587), (61, 272783), (133, 125111), (293, 56791), (427, 38969), (931, 17873), (1159, 14357), (2051, 8113), (2989, 5567)]