21611457

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4133}}^1$

素因数の和:4229

約数の個数: 24

約数和(自身を含む): 36114624

約数和(自身を除く): 14503167

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4133, 5229, 12399, 28931, 37197, 86793, 260379, 343039, 1029117, 2401273, 3087351, 7203819, 21611457]

約数ペア:

[(1, 21611457), (3, 7203819), (7, 3087351), (9, 2401273), (21, 1029117), (63, 343039), (83, 260379), (249, 86793), (581, 37197), (747, 28931), (1743, 12399), (4133, 5229)]