21149793

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17669}}^1$

素因数の和:17701

約数の個数: 24

約数和(自身を含む): 36753600

約数和(自身を除く): 15603807

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17669, 53007, 123683, 159021, 335711, 371049, 1007133, 1113147, 2349977, 3021399, 7049931, 21149793]

約数ペア:

[(1, 21149793), (3, 7049931), (7, 3021399), (9, 2349977), (19, 1113147), (21, 1007133), (57, 371049), (63, 335711), (133, 159021), (171, 123683), (399, 53007), (1197, 17669)]