28553917

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 34732152

約数和(自身を除く): 6178235

約数列:

[1, 7, 41, 49, 61, 233, 287, 427, 1631, 2009, 2501, 2989, 9553, 11417, 14213, 17507, 66871, 99491, 122549, 468097, 582733, 696437, 4079131, 28553917]

約数ペア:

[(1, 28553917), (7, 4079131), (41, 696437), (49, 582733), (61, 468097), (233, 122549), (287, 99491), (427, 66871), (1631, 17507), (2009, 14213), (2501, 11417), (2989, 9553)]