21272478

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{21751}}^1$

素因数の和:21919

約数の個数: 16

約数和(自身を含む): 42807936

約数和(自身を除く): 21535458

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 21751, 43502, 65253, 130506, 3545413, 7090826, 10636239, 21272478]

約数ペア:

[(1, 21272478), (2, 10636239), (3, 7090826), (6, 3545413), (163, 130506), (326, 65253), (489, 43502), (978, 21751)]