21904376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210619}}^1$

素因数の和:210638

約数の個数: 16

約数和(自身を含む): 44230200

約数和(自身を除く): 22325824

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210619, 421238, 842476, 1684952, 2738047, 5476094, 10952188, 21904376]

約数ペア:

[(1, 21904376), (2, 10952188), (4, 5476094), (8, 2738047), (13, 1684952), (26, 842476), (52, 421238), (104, 210619)]