20820267

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2579}}^1$

素因数の和:2624

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 13854933

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2579, 2691, 7737, 8073, 23211, 33527, 59317, 69633, 100581, 177951, 301743, 533853, 771121, 905229, 1601559, 2313363, 6940089, 20820267]

約数ペア:

[(1, 20820267), (3, 6940089), (9, 2313363), (13, 1601559), (23, 905229), (27, 771121), (39, 533853), (69, 301743), (117, 177951), (207, 100581), (299, 69633), (351, 59317), (621, 33527), (897, 23211), (2579, 8073), (2691, 7737)]