18818384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90473}}^1$

素因数の和:90494

約数の個数: 20

約数和(自身を含む): 39265716

約数和(自身を除く): 20447332

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90473, 180946, 361892, 723784, 1176149, 1447568, 2352298, 4704596, 9409192, 18818384]

約数ペア:

[(1, 18818384), (2, 9409192), (4, 4704596), (8, 2352298), (13, 1447568), (16, 1176149), (26, 723784), (52, 361892), (104, 180946), (208, 90473)]