28653993

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20809}}^1$

素因数の和:20838

約数の個数: 20

約数和(自身を含む): 45324180

約数和(自身を除く): 16670187

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20809, 62427, 187281, 353753, 561843, 1061259, 1685529, 3183777, 9551331, 28653993]

約数ペア:

[(1, 28653993), (3, 9551331), (9, 3183777), (17, 1685529), (27, 1061259), (51, 561843), (81, 353753), (153, 187281), (459, 62427), (1377, 20809)]