28307587

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1759}}^1$

素因数の和:1807

約数の個数: 24

約数和(自身を含む): 37452800

約数和(自身を除く): 9145213

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1463, 1759, 2299, 12313, 16093, 19349, 33421, 135443, 212839, 233947, 367631, 1489873, 2573417, 4043941, 28307587]

約数ペア:

[(1, 28307587), (7, 4043941), (11, 2573417), (19, 1489873), (77, 367631), (121, 233947), (133, 212839), (209, 135443), (847, 33421), (1463, 19349), (1759, 16093), (2299, 12313)]