21856516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{1567}}^1$

素因数の和:1899

約数の個数: 24

約数和(自身を含む): 41884416

約数和(自身を除く): 20027900

約数列:

[1, 2, 4, 11, 22, 44, 317, 634, 1268, 1567, 3134, 3487, 6268, 6974, 13948, 17237, 34474, 68948, 496739, 993478, 1986956, 5464129, 10928258, 21856516]

約数ペア:

[(1, 21856516), (2, 10928258), (4, 5464129), (11, 1986956), (22, 993478), (44, 496739), (317, 68948), (634, 34474), (1268, 17237), (1567, 13948), (3134, 6974), (3487, 6268)]