21042159

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{1163}}^1$

素因数の和:1366

約数の個数: 16

約数和(自身を含む): 29016192

約数和(自身を除く): 7974033

約数列:

[1, 3, 37, 111, 163, 489, 1163, 3489, 6031, 18093, 43031, 129093, 189569, 568707, 7014053, 21042159]

約数ペア:

[(1, 21042159), (3, 7014053), (37, 568707), (111, 189569), (163, 129093), (489, 43031), (1163, 18093), (3489, 6031)]