19127888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91961}}^1$

素因数の和:91982

約数の個数: 20

約数和(自身を含む): 39911508

約数和(自身を除く): 20783620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91961, 183922, 367844, 735688, 1195493, 1471376, 2390986, 4781972, 9563944, 19127888]

約数ペア:

[(1, 19127888), (2, 9563944), (4, 4781972), (8, 2390986), (13, 1471376), (16, 1195493), (26, 735688), (52, 367844), (104, 183922), (208, 91961)]