28207487

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:971

約数の個数: 24

約数和(自身を含む): 36443520

約数和(自身を除く): 8236033

約数列:

[1, 7, 11, 49, 59, 77, 413, 539, 649, 887, 2891, 4543, 6209, 9757, 31801, 43463, 52333, 68299, 366331, 478093, 575663, 2564317, 4029641, 28207487]

約数ペア:

[(1, 28207487), (7, 4029641), (11, 2564317), (49, 575663), (59, 478093), (77, 366331), (413, 68299), (539, 52333), (649, 43463), (887, 31801), (2891, 9757), (4543, 6209)]