12887888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61961}}^1$

素因数の和:61982

約数の個数: 20

約数和(自身を含む): 26891508

約数和(自身を除く): 14003620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 61961, 123922, 247844, 495688, 805493, 991376, 1610986, 3221972, 6443944, 12887888]

約数ペア:

[(1, 12887888), (2, 6443944), (4, 3221972), (8, 1610986), (13, 991376), (16, 805493), (26, 495688), (52, 247844), (104, 123922), (208, 61961)]