21457352

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3581}}^1$

素因数の和:3701

約数の個数: 32

約数和(自身を含む): 46422720

約数和(自身を除く): 24965368

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2996, 3581, 5992, 7162, 14324, 25067, 28648, 50134, 100268, 200536, 383167, 766334, 1532668, 2682169, 3065336, 5364338, 10728676, 21457352]

約数ペア:

[(1, 21457352), (2, 10728676), (4, 5364338), (7, 3065336), (8, 2682169), (14, 1532668), (28, 766334), (56, 383167), (107, 200536), (214, 100268), (428, 50134), (749, 28648), (856, 25067), (1498, 14324), (2996, 7162), (3581, 5992)]