28380737

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1021}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 37380672

約数和(自身を除く): 8999935

約数列:

[1, 7, 11, 19, 77, 133, 209, 361, 1021, 1463, 2527, 3971, 7147, 11231, 19399, 27797, 78617, 135793, 213389, 368581, 1493723, 2580067, 4054391, 28380737]

約数ペア:

[(1, 28380737), (7, 4054391), (11, 2580067), (19, 1493723), (77, 368581), (133, 213389), (209, 135793), (361, 78617), (1021, 27797), (1463, 19399), (2527, 11231), (3971, 7147)]