18666765

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1877}}^1$

素因数の和:1918

約数の個数: 48

約数和(自身を含む): 36913968

約数和(自身を除く): 18247203

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1877, 1989, 3315, 5631, 9385, 9945, 16893, 24401, 28155, 31909, 73203, 84465, 95727, 122005, 159545, 219609, 287181, 366015, 414817, 478635, 1098045, 1244451, 1435905, 2074085, 3733353, 6222255, 18666765]

約数ペア:

[(1, 18666765), (3, 6222255), (5, 3733353), (9, 2074085), (13, 1435905), (15, 1244451), (17, 1098045), (39, 478635), (45, 414817), (51, 366015), (65, 287181), (85, 219609), (117, 159545), (153, 122005), (195, 95727), (221, 84465), (255, 73203), (585, 31909), (663, 28155), (765, 24401), (1105, 16893), (1877, 9945), (1989, 9385), (3315, 5631)]