2721921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 4122720

約数和(自身を除く): 1400799

約数列:

[1, 3, 17, 19, 51, 53, 57, 159, 323, 901, 969, 1007, 2703, 2809, 3021, 8427, 17119, 47753, 51357, 53371, 143259, 160113, 907307, 2721921]

約数ペア:

[(1, 2721921), (3, 907307), (17, 160113), (19, 143259), (51, 53371), (53, 51357), (57, 47753), (159, 17119), (323, 8427), (901, 3021), (969, 2809), (1007, 2703)]