18816831

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:532

約数の個数: 36

約数和(自身を含む): 30748536

約数和(自身を除く): 11931705

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 121, 333, 363, 407, 467, 1089, 1221, 1401, 3663, 4203, 4477, 5137, 13431, 15411, 17279, 40293, 46233, 51837, 56507, 155511, 169521, 190069, 508563, 570207, 1710621, 2090759, 6272277, 18816831]

約数ペア:

[(1, 18816831), (3, 6272277), (9, 2090759), (11, 1710621), (33, 570207), (37, 508563), (99, 190069), (111, 169521), (121, 155511), (333, 56507), (363, 51837), (407, 46233), (467, 40293), (1089, 17279), (1221, 15411), (1401, 13431), (3663, 5137), (4203, 4477)]