20751472

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6389}}^1$

素因数の和:6433

約数の個数: 40

約数和(自身を含む): 47541600

約数和(自身を除く): 26790128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6389, 12778, 25556, 44723, 51112, 89446, 102224, 178892, 185281, 357784, 370562, 715568, 741124, 1296967, 1482248, 2593934, 2964496, 5187868, 10375736, 20751472]

約数ペア:

[(1, 20751472), (2, 10375736), (4, 5187868), (7, 2964496), (8, 2593934), (14, 1482248), (16, 1296967), (28, 741124), (29, 715568), (56, 370562), (58, 357784), (112, 185281), (116, 178892), (203, 102224), (232, 89446), (406, 51112), (464, 44723), (812, 25556), (1624, 12778), (3248, 6389)]