7981497

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{467}}^1$

素因数の和:690

約数の個数: 20

約数和(自身を含む): 12005136

約数和(自身を除く): 4023639

約数列:

[1, 3, 9, 27, 81, 211, 467, 633, 1401, 1899, 4203, 5697, 12609, 17091, 37827, 98537, 295611, 886833, 2660499, 7981497]

約数ペア:

[(1, 7981497), (3, 2660499), (9, 886833), (27, 295611), (81, 98537), (211, 37827), (467, 17091), (633, 12609), (1401, 5697), (1899, 4203)]