21988614

素因数分解:

$2^1\times 3^1\times {\mathrm{389}}^1\times {\mathrm{9421}}^1$

素因数の和:9815

約数の個数: 16

約数和(自身を含む): 44094960

約数和(自身を除く): 22106346

約数列:

[1, 2, 3, 6, 389, 778, 1167, 2334, 9421, 18842, 28263, 56526, 3664769, 7329538, 10994307, 21988614]

約数ペア:

[(1, 21988614), (2, 10994307), (3, 7329538), (6, 3664769), (389, 56526), (778, 28263), (1167, 18842), (2334, 9421)]