16521219

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 29047200

約数和(自身を除く): 12525981

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 121, 143, 297, 351, 363, 389, 429, 1089, 1167, 1287, 1573, 3267, 3501, 3861, 4279, 4719, 5057, 10503, 12837, 14157, 15171, 38511, 42471, 45513, 47069, 55627, 115533, 136539, 141207, 166881, 423621, 500643, 611897, 1270863, 1501929, 1835691, 5507073, 16521219]

約数ペア:

[(1, 16521219), (3, 5507073), (9, 1835691), (11, 1501929), (13, 1270863), (27, 611897), (33, 500643), (39, 423621), (99, 166881), (117, 141207), (121, 136539), (143, 115533), (297, 55627), (351, 47069), (363, 45513), (389, 42471), (429, 38511), (1089, 15171), (1167, 14157), (1287, 12837), (1573, 10503), (3267, 5057), (3501, 4719), (3861, 4279)]