18707312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89939}}^1$

素因数の和:89960

約数の個数: 20

約数和(自身を含む): 39033960

約数和(自身を除く): 20326648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89939, 179878, 359756, 719512, 1169207, 1439024, 2338414, 4676828, 9353656, 18707312]

約数ペア:

[(1, 18707312), (2, 9353656), (4, 4676828), (8, 2338414), (13, 1439024), (16, 1169207), (26, 719512), (52, 359756), (104, 179878), (208, 89939)]