7917021

素因数分解:

$3^4\times 7^1\times {\mathrm{13963}}^1$

素因数の和:13982

約数の個数: 20

約数和(自身を含む): 13517152

約数和(自身を除く): 5600131

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 13963, 41889, 97741, 125667, 293223, 377001, 879669, 1131003, 2639007, 7917021]

約数ペア:

[(1, 7917021), (3, 2639007), (7, 1131003), (9, 879669), (21, 377001), (27, 293223), (63, 125667), (81, 97741), (189, 41889), (567, 13963)]