19903003211

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{3313}}^1\times {\mathrm{9431}}^1$

素因数の和:12771

約数の個数: 24

約数和(自身を含む): 24943603104

約数和(自身を除く): 5040599893

約数列:

[1, 7, 13, 49, 91, 637, 3313, 9431, 23191, 43069, 66017, 122603, 162337, 301483, 462119, 858221, 2110381, 6007547, 31244903, 218714321, 406183739, 1531000247, 2843286173, 19903003211]

約数ペア:

[(1, 19903003211), (7, 2843286173), (13, 1531000247), (49, 406183739), (91, 218714321), (637, 31244903), (3313, 6007547), (9431, 2110381), (23191, 858221), (43069, 462119), (66017, 301483), (122603, 162337)]