20900571

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{653}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 28629504

約数和(自身を除く): 7728933

約数列:

[1, 3, 47, 141, 227, 653, 681, 1959, 10669, 30691, 32007, 92073, 148231, 444693, 6966857, 20900571]

約数ペア:

[(1, 20900571), (3, 6966857), (47, 444693), (141, 148231), (227, 92073), (653, 32007), (681, 30691), (1959, 10669)]