19863935

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 29635200

約数和(自身を除く): 9771265

約数列:

[1, 5, 7, 13, 35, 65, 91, 149, 293, 455, 745, 1043, 1465, 1937, 2051, 3809, 5215, 9685, 10255, 13559, 19045, 26663, 43657, 67795, 133315, 218285, 305599, 567541, 1527995, 2837705, 3972787, 19863935]

約数ペア:

[(1, 19863935), (5, 3972787), (7, 2837705), (13, 1527995), (35, 567541), (65, 305599), (91, 218285), (149, 133315), (293, 67795), (455, 43657), (745, 26663), (1043, 19045), (1465, 13559), (1937, 10255), (2051, 9685), (3809, 5215)]