21810033

素因数分解:

$3^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 37201920

約数和(自身を除く): 15391887

約数列:

[1, 3, 7, 9, 21, 27, 63, 167, 189, 501, 691, 1169, 1503, 2073, 3507, 4509, 4837, 6219, 10521, 14511, 18657, 31563, 43533, 115397, 130599, 346191, 807779, 1038573, 2423337, 3115719, 7270011, 21810033]

約数ペア:

[(1, 21810033), (3, 7270011), (7, 3115719), (9, 2423337), (21, 1038573), (27, 807779), (63, 346191), (167, 130599), (189, 115397), (501, 43533), (691, 31563), (1169, 18657), (1503, 14511), (2073, 10521), (3507, 6219), (4509, 4837)]