646454277

素因数分解:

$3^4\times 7^1\times {\mathrm{1140131}}^1$

素因数の和:1140150

約数の個数: 20

約数和(自身を含む): 1103647776

約数和(自身を除く): 457193499

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1140131, 3420393, 7980917, 10261179, 23942751, 30783537, 71828253, 92350611, 215484759, 646454277]

約数ペア:

[(1, 646454277), (3, 215484759), (7, 92350611), (9, 71828253), (21, 30783537), (27, 23942751), (63, 10261179), (81, 7980917), (189, 3420393), (567, 1140131)]