21027279

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{77023}}^1$

素因数の和:77046

約数の個数: 16

約数和(自身を含む): 34506752

約数和(自身を除く): 13479473

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 77023, 231069, 539161, 1001299, 1617483, 3003897, 7009093, 21027279]

約数ペア:

[(1, 21027279), (3, 7009093), (7, 3003897), (13, 1617483), (21, 1001299), (39, 539161), (91, 231069), (273, 77023)]