21608478

素因数分解:

$2^1\times 3^3\times {\mathrm{400157}}^1$

素因数の和:400168

約数の個数: 16

約数和(自身を含む): 48018960

約数和(自身を除く): 26410482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 400157, 800314, 1200471, 2400942, 3601413, 7202826, 10804239, 21608478]

約数ペア:

[(1, 21608478), (2, 10804239), (3, 7202826), (6, 3601413), (9, 2400942), (18, 1200471), (27, 800314), (54, 400157)]