21481088

素因数分解:

$2^7\times {\mathrm{257}}^1\times {\mathrm{653}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 43026660

約数和(自身を除く): 21545572

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 257, 514, 653, 1028, 1306, 2056, 2612, 4112, 5224, 8224, 10448, 16448, 20896, 32896, 41792, 83584, 167821, 335642, 671284, 1342568, 2685136, 5370272, 10740544, 21481088]

約数ペア:

[(1, 21481088), (2, 10740544), (4, 5370272), (8, 2685136), (16, 1342568), (32, 671284), (64, 335642), (128, 167821), (257, 83584), (514, 41792), (653, 32896), (1028, 20896), (1306, 16448), (2056, 10448), (2612, 8224), (4112, 5224)]