21691137

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{6701}}^1$

素因数の和:6800

約数の個数: 16

約数和(自身を含む): 31526208

約数和(自身を除く): 9835071

約数列:

[1, 3, 13, 39, 83, 249, 1079, 3237, 6701, 20103, 87113, 261339, 556183, 1668549, 7230379, 21691137]

約数ペア:

[(1, 21691137), (3, 7230379), (13, 1668549), (39, 556183), (83, 261339), (249, 87113), (1079, 20103), (3237, 6701)]