21985768

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{937}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 47275200

約数和(自身を除く): 25289432

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 838, 937, 1676, 1874, 2933, 3352, 3748, 5866, 6559, 7496, 11732, 13118, 23464, 26236, 52472, 392603, 785206, 1570412, 2748221, 3140824, 5496442, 10992884, 21985768]

約数ペア:

[(1, 21985768), (2, 10992884), (4, 5496442), (7, 3140824), (8, 2748221), (14, 1570412), (28, 785206), (56, 392603), (419, 52472), (838, 26236), (937, 23464), (1676, 13118), (1874, 11732), (2933, 7496), (3352, 6559), (3748, 5866)]