21807179905

素因数分解:

$5^1\times 7^1\times {\mathrm{1447}}^1\times {\mathrm{430589}}^1$

素因数の和:432048

約数の個数: 16

約数和(自身を含む): 29927727360

約数和(自身を除く): 8120547455

約数列:

[1, 5, 7, 35, 1447, 7235, 10129, 50645, 430589, 2152945, 3014123, 15070615, 623062283, 3115311415, 4361435981, 21807179905]

約数ペア:

[(1, 21807179905), (5, 4361435981), (7, 3115311415), (35, 623062283), (1447, 15070615), (7235, 3014123), (10129, 2152945), (50645, 430589)]