12779739

素因数分解:

$3^2\times 7^2\times {\mathrm{28979}}^1$

素因数の和:28999

約数の個数: 18

約数和(自身を含む): 21474180

約数和(自身を除く): 8694441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 28979, 86937, 202853, 260811, 608559, 1419971, 1825677, 4259913, 12779739]

約数ペア:

[(1, 12779739), (3, 4259913), (7, 1825677), (9, 1419971), (21, 608559), (49, 260811), (63, 202853), (147, 86937), (441, 28979)]