20212045

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9467}}^1$

素因数の和:9540

約数の個数: 16

約数和(自身を含む): 28176768

約数和(自身を除く): 7964723

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9467, 47335, 66269, 331345, 577487, 2887435, 4042409, 20212045]

約数ペア:

[(1, 20212045), (5, 4042409), (7, 2887435), (35, 577487), (61, 331345), (305, 66269), (427, 47335), (2135, 9467)]