28501814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{257}}^1$

素因数の和:412

約数の個数: 24

約数和(自身を含む): 47489544

約数和(自身を除く): 18987730

約数列:

[1, 2, 11, 22, 71, 142, 257, 514, 781, 1562, 2827, 5041, 5654, 10082, 18247, 36494, 55451, 110902, 200717, 401434, 1295537, 2591074, 14250907, 28501814]

約数ペア:

[(1, 28501814), (2, 14250907), (11, 2591074), (22, 1295537), (71, 401434), (142, 200717), (257, 110902), (514, 55451), (781, 36494), (1562, 18247), (2827, 10082), (5041, 5654)]