28212107

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2459}}^1$

素因数の和:2626

約数の個数: 16

約数和(自身を含む): 35424000

約数和(自身を除く): 7211893

約数列:

[1, 7, 11, 77, 149, 1043, 1639, 2459, 11473, 17213, 27049, 189343, 366391, 2564737, 4030301, 28212107]

約数ペア:

[(1, 28212107), (7, 4030301), (11, 2564737), (77, 366391), (149, 189343), (1043, 27049), (1639, 17213), (2459, 11473)]