18931952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91019}}^1$

素因数の和:91040

約数の個数: 20

約数和(自身を含む): 39502680

約数和(自身を除く): 20570728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91019, 182038, 364076, 728152, 1183247, 1456304, 2366494, 4732988, 9465976, 18931952]

約数ペア:

[(1, 18931952), (2, 9465976), (4, 4732988), (8, 2366494), (13, 1456304), (16, 1183247), (26, 728152), (52, 364076), (104, 182038), (208, 91019)]