20713385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 32124288

約数和(自身を除く): 11410903

約数列:

[1, 5, 7, 11, 35, 55, 67, 73, 77, 121, 335, 365, 385, 469, 511, 605, 737, 803, 847, 2345, 2555, 3685, 4015, 4235, 4891, 5159, 5621, 8107, 8833, 24455, 25795, 28105, 34237, 40535, 44165, 53801, 56749, 61831, 171185, 269005, 283745, 309155, 376607, 591811, 1883035, 2959055, 4142677, 20713385]

約数ペア:

[(1, 20713385), (5, 4142677), (7, 2959055), (11, 1883035), (35, 591811), (55, 376607), (67, 309155), (73, 283745), (77, 269005), (121, 171185), (335, 61831), (365, 56749), (385, 53801), (469, 44165), (511, 40535), (605, 34237), (737, 28105), (803, 25795), (847, 24455), (2345, 8833), (2555, 8107), (3685, 5621), (4015, 5159), (4235, 4891)]