21420042

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2287}}^1$

素因数の和:2522

約数の個数: 32

約数和(自身を含む): 49201152

約数和(自身を除く): 27781110

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 223, 446, 669, 1338, 1561, 2287, 3122, 4574, 4683, 6861, 9366, 13722, 16009, 32018, 48027, 96054, 510001, 1020002, 1530003, 3060006, 3570007, 7140014, 10710021, 21420042]

約数ペア:

[(1, 21420042), (2, 10710021), (3, 7140014), (6, 3570007), (7, 3060006), (14, 1530003), (21, 1020002), (42, 510001), (223, 96054), (446, 48027), (669, 32018), (1338, 16009), (1561, 13722), (2287, 9366), (3122, 6861), (4574, 4683)]