20564511

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 10456545

約数列:

[1, 3, 11, 33, 67, 71, 131, 201, 213, 393, 737, 781, 1441, 2211, 2343, 4323, 4757, 8777, 9301, 14271, 26331, 27903, 52327, 96547, 102311, 156981, 289641, 306933, 623167, 1869501, 6854837, 20564511]

約数ペア:

[(1, 20564511), (3, 6854837), (11, 1869501), (33, 623167), (67, 306933), (71, 289641), (131, 156981), (201, 102311), (213, 96547), (393, 52327), (737, 27903), (781, 26331), (1441, 14271), (2211, 9301), (2343, 8777), (4323, 4757)]