12987982

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 23662080

約数和(自身を除く): 10674098

約数列:

[1, 2, 7, 14, 19, 38, 133, 157, 266, 311, 314, 622, 1099, 2177, 2198, 2983, 4354, 5909, 5966, 11818, 20881, 41363, 41762, 48827, 82726, 97654, 341789, 683578, 927713, 1855426, 6493991, 12987982]

約数ペア:

[(1, 12987982), (2, 6493991), (7, 1855426), (14, 927713), (19, 683578), (38, 341789), (133, 97654), (157, 82726), (266, 48827), (311, 41762), (314, 41363), (622, 20881), (1099, 11818), (2177, 5966), (2198, 5909), (2983, 4354)]