12489428

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3209}}^1$

素因数の和:3359

約数の個数: 24

約数和(自身を含む): 25166400

約数和(自身を除く): 12676972

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3209, 3892, 6418, 12836, 22463, 44926, 89852, 446051, 892102, 1784204, 3122357, 6244714, 12489428]

約数ペア:

[(1, 12489428), (2, 6244714), (4, 3122357), (7, 1784204), (14, 892102), (28, 446051), (139, 89852), (278, 44926), (556, 22463), (973, 12836), (1946, 6418), (3209, 3892)]