20005227

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{509}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 31664880

約数和(自身を除く): 11659653

約数列:

[1, 3, 9, 11, 33, 99, 397, 509, 1191, 1527, 3573, 4367, 4581, 5599, 13101, 16797, 39303, 50391, 202073, 606219, 1818657, 2222803, 6668409, 20005227]

約数ペア:

[(1, 20005227), (3, 6668409), (9, 2222803), (11, 1818657), (33, 606219), (99, 202073), (397, 50391), (509, 39303), (1191, 16797), (1527, 13101), (3573, 5599), (4367, 4581)]