211678887

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^3\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 333184000

約数和(自身を除く): 121505113

約数列:

[1, 3, 7, 21, 37, 111, 199, 259, 597, 777, 1369, 1393, 4107, 4179, 7363, 9583, 22089, 28749, 50653, 51541, 151959, 154623, 272431, 354571, 817293, 1063713, 1907017, 5721051, 10079947, 30239841, 70559629, 211678887]

約数ペア:

[(1, 211678887), (3, 70559629), (7, 30239841), (21, 10079947), (37, 5721051), (111, 1907017), (199, 1063713), (259, 817293), (597, 354571), (777, 272431), (1369, 154623), (1393, 151959), (4107, 51541), (4179, 50653), (7363, 28749), (9583, 22089)]