21130266

素因数分解:

$2^1\times 3^1\times {\mathrm{643}}^1\times {\mathrm{5477}}^1$

素因数の和:6125

約数の個数: 16

約数和(自身を含む): 42333984

約数和(自身を除く): 21203718

約数列:

[1, 2, 3, 6, 643, 1286, 1929, 3858, 5477, 10954, 16431, 32862, 3521711, 7043422, 10565133, 21130266]

約数ペア:

[(1, 21130266), (2, 10565133), (3, 7043422), (6, 3521711), (643, 32862), (1286, 16431), (1929, 10954), (3858, 5477)]