261303133

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1319}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 328648320

約数和(自身を除く): 67345187

約数列:

[1, 7, 13, 49, 91, 311, 637, 1319, 2177, 4043, 9233, 15239, 17147, 28301, 64631, 120029, 198107, 410209, 840203, 2871463, 5332717, 20100241, 37329019, 261303133]

約数ペア:

[(1, 261303133), (7, 37329019), (13, 20100241), (49, 5332717), (91, 2871463), (311, 840203), (637, 410209), (1319, 198107), (2177, 120029), (4043, 64631), (9233, 28301), (15239, 17147)]