21742137

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2399}}^1$

素因数の和:2477

約数の個数: 24

約数和(自身を含む): 33696000

約数和(自身を除く): 11953863

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2399, 3021, 7197, 9063, 21591, 45581, 127147, 136743, 381441, 410229, 1144323, 2415793, 7247379, 21742137]

約数ペア:

[(1, 21742137), (3, 7247379), (9, 2415793), (19, 1144323), (53, 410229), (57, 381441), (159, 136743), (171, 127147), (477, 45581), (1007, 21591), (2399, 9063), (3021, 7197)]