21289446

素因数分解:

$2^1\times 3^3\times {\mathrm{394249}}^1$

素因数の和:394260

約数の個数: 16

約数和(自身を含む): 47310000

約数和(自身を除く): 26020554

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394249, 788498, 1182747, 2365494, 3548241, 7096482, 10644723, 21289446]

約数ペア:

[(1, 21289446), (2, 10644723), (3, 7096482), (6, 3548241), (9, 2365494), (18, 1182747), (27, 788498), (54, 394249)]