21699184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104323}}^1$

素因数の和:104344

約数の個数: 20

約数和(自身を含む): 45276616

約数和(自身を除く): 23577432

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104323, 208646, 417292, 834584, 1356199, 1669168, 2712398, 5424796, 10849592, 21699184]

約数ペア:

[(1, 21699184), (2, 10849592), (4, 5424796), (8, 2712398), (13, 1669168), (16, 1356199), (26, 834584), (52, 417292), (104, 208646), (208, 104323)]