645947997

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{2861}}^1$

素因数の和:3133

約数の個数: 32

約数和(自身を含む): 964379520

約数和(自身を除く): 318431523

約数列:

[1, 3, 17, 19, 51, 57, 233, 323, 699, 969, 2861, 3961, 4427, 8583, 11883, 13281, 48637, 54359, 75259, 145911, 163077, 225777, 666613, 924103, 1999839, 2772309, 11332421, 12665647, 33997263, 37996941, 215315999, 645947997]

約数ペア:

[(1, 645947997), (3, 215315999), (17, 37996941), (19, 33997263), (51, 12665647), (57, 11332421), (233, 2772309), (323, 1999839), (699, 924103), (969, 666613), (2861, 225777), (3961, 163077), (4427, 145911), (8583, 75259), (11883, 54359), (13281, 48637)]