19728345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 39513600

約数和(自身を除く): 19785255

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 97, 105, 149, 195, 273, 291, 447, 455, 485, 679, 745, 1043, 1261, 1365, 1455, 1937, 2037, 2235, 3129, 3395, 3783, 5215, 5811, 6305, 8827, 9685, 10185, 13559, 14453, 15645, 18915, 26481, 29055, 40677, 43359, 44135, 67795, 72265, 101171, 132405, 187889, 203385, 216795, 303513, 505855, 563667, 939445, 1315223, 1517565, 2818335, 3945669, 6576115, 19728345]

約数ペア:

[(1, 19728345), (3, 6576115), (5, 3945669), (7, 2818335), (13, 1517565), (15, 1315223), (21, 939445), (35, 563667), (39, 505855), (65, 303513), (91, 216795), (97, 203385), (105, 187889), (149, 132405), (195, 101171), (273, 72265), (291, 67795), (447, 44135), (455, 43359), (485, 40677), (679, 29055), (745, 26481), (1043, 18915), (1261, 15645), (1365, 14453), (1455, 13559), (1937, 10185), (2037, 9685), (2235, 8827), (3129, 6305), (3395, 5811), (3783, 5215)]