20678945

素因数分解:

$5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{6091}}^1$

素因数の和:6200

約数の個数: 16

約数和(自身を含む): 28656768

約数和(自身を除く): 7977823

約数列:

[1, 5, 7, 35, 97, 485, 679, 3395, 6091, 30455, 42637, 213185, 590827, 2954135, 4135789, 20678945]

約数ペア:

[(1, 20678945), (5, 4135789), (7, 2954135), (35, 590827), (97, 213185), (485, 42637), (679, 30455), (3395, 6091)]