20213913

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2207}}^1$

素因数の和:2324

約数の個数: 16

約数和(自身を含む): 27979776

約数和(自身を除く): 7765863

約数列:

[1, 3, 43, 71, 129, 213, 2207, 3053, 6621, 9159, 94901, 156697, 284703, 470091, 6737971, 20213913]

約数ペア:

[(1, 20213913), (3, 6737971), (43, 470091), (71, 284703), (129, 156697), (213, 94901), (2207, 9159), (3053, 6621)]