21217998

素因数分解:

$2^1\times 3^1\times {\mathrm{307}}^1\times {\mathrm{11519}}^1$

素因数の和:11831

約数の個数: 16

約数和(自身を含む): 42577920

約数和(自身を除く): 21359922

約数列:

[1, 2, 3, 6, 307, 614, 921, 1842, 11519, 23038, 34557, 69114, 3536333, 7072666, 10608999, 21217998]

約数ペア:

[(1, 21217998), (2, 10608999), (3, 7072666), (6, 3536333), (307, 69114), (614, 34557), (921, 23038), (1842, 11519)]