21714539

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 28191744

約数和(自身を除く): 6477205

約数列:

[1, 7, 11, 31, 77, 121, 217, 341, 827, 847, 2387, 3751, 5789, 9097, 25637, 26257, 63679, 100067, 179459, 282007, 700469, 1974049, 3102077, 21714539]

約数ペア:

[(1, 21714539), (7, 3102077), (11, 1974049), (31, 700469), (77, 282007), (121, 179459), (217, 100067), (341, 63679), (827, 26257), (847, 25637), (2387, 9097), (3751, 5789)]