20749509

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6761}}^1$

素因数の和:6809

約数の個数: 24

約数和(自身を含む): 33755904

約数和(自身を除く): 13006395

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 6761, 20283, 60849, 74371, 209591, 223113, 628773, 669339, 1886319, 2305501, 6916503, 20749509]

約数ペア:

[(1, 20749509), (3, 6916503), (9, 2305501), (11, 1886319), (31, 669339), (33, 628773), (93, 223113), (99, 209591), (279, 74371), (341, 60849), (1023, 20283), (3069, 6761)]