21097017

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{5107}}^1$

素因数の和:5139

約数の個数: 24

約数和(自身を含む): 33467616

約数和(自身を除く): 12370599

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 5107, 15321, 45963, 86819, 137889, 260457, 413667, 781371, 1241001, 2344113, 7032339, 21097017]

約数ペア:

[(1, 21097017), (3, 7032339), (9, 2344113), (17, 1241001), (27, 781371), (51, 413667), (81, 260457), (153, 137889), (243, 86819), (459, 45963), (1377, 15321), (4131, 5107)]