21236642

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2753}}^1$

素因数の和:2810

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18420958

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 133, 203, 266, 406, 551, 1102, 2753, 3857, 5506, 7714, 19271, 38542, 52307, 79837, 104614, 159674, 366149, 558859, 732298, 1117718, 1516903, 3033806, 10618321, 21236642]

約数ペア:

[(1, 21236642), (2, 10618321), (7, 3033806), (14, 1516903), (19, 1117718), (29, 732298), (38, 558859), (58, 366149), (133, 159674), (203, 104614), (266, 79837), (406, 52307), (551, 38542), (1102, 19271), (2753, 7714), (3857, 5506)]