21671930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{309599}}^1$

素因数の和:309613

約数の個数: 16

約数和(自身を含む): 44582400

約数和(自身を除く): 22910470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 309599, 619198, 1547995, 2167193, 3095990, 4334386, 10835965, 21671930]

約数ペア:

[(1, 21671930), (2, 10835965), (5, 4334386), (7, 3095990), (10, 2167193), (14, 1547995), (35, 619198), (70, 309599)]