19911112

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191453}}^1$

素因数の和:191472

約数の個数: 16

約数和(自身を含む): 40205340

約数和(自身を除く): 20294228

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191453, 382906, 765812, 1531624, 2488889, 4977778, 9955556, 19911112]

約数ペア:

[(1, 19911112), (2, 9955556), (4, 4977778), (8, 2488889), (13, 1531624), (26, 765812), (52, 382906), (104, 191453)]