21811454

素因数分解:

$2^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{2143}}^1$

素因数の和:2879

約数の個数: 16

約数和(自身を含む): 37459968

約数和(自身を除く): 15648514

約数列:

[1, 2, 7, 14, 727, 1454, 2143, 4286, 5089, 10178, 15001, 30002, 1557961, 3115922, 10905727, 21811454]

約数ペア:

[(1, 21811454), (2, 10905727), (7, 3115922), (14, 1557961), (727, 30002), (1454, 15001), (2143, 10178), (4286, 5089)]