12990988

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1607}}^1$

素因数の和:1701

約数の個数: 24

約数和(自身を含む): 23772672

約数和(自身を除く): 10781684

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 1607, 2021, 3214, 4042, 6428, 8084, 69101, 75529, 138202, 151058, 276404, 302116, 3247747, 6495494, 12990988]

約数ペア:

[(1, 12990988), (2, 6495494), (4, 3247747), (43, 302116), (47, 276404), (86, 151058), (94, 138202), (172, 75529), (188, 69101), (1607, 8084), (2021, 6428), (3214, 4042)]