21663327

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 34504704

約数和(自身を除く): 12841377

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 311, 321, 651, 749, 933, 2177, 2247, 3317, 6531, 9641, 9951, 23219, 28923, 33277, 67487, 69657, 99831, 202461, 232939, 698817, 1031587, 3094761, 7221109, 21663327]

約数ペア:

[(1, 21663327), (3, 7221109), (7, 3094761), (21, 1031587), (31, 698817), (93, 232939), (107, 202461), (217, 99831), (311, 69657), (321, 67487), (651, 33277), (749, 28923), (933, 23219), (2177, 9951), (2247, 9641), (3317, 6531)]