21205758

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4999}}^1$

素因数の和:5112

約数の個数: 32

約数和(自身を含む): 48960000

約数和(自身を除く): 27754242

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 101, 202, 303, 606, 707, 1414, 2121, 4242, 4999, 9998, 14997, 29994, 34993, 69986, 104979, 209958, 504899, 1009798, 1514697, 3029394, 3534293, 7068586, 10602879, 21205758]

約数ペア:

[(1, 21205758), (2, 10602879), (3, 7068586), (6, 3534293), (7, 3029394), (14, 1514697), (21, 1009798), (42, 504899), (101, 209958), (202, 104979), (303, 69986), (606, 34993), (707, 29994), (1414, 14997), (2121, 9998), (4242, 4999)]