19938866497

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1\times {\mathrm{3947}}^1$

素因数の和:4509

約数の個数: 32

約数和(自身を含む): 23304443904

約数和(自身を除く): 3365577407

約数列:

[1, 11, 23, 41, 253, 451, 487, 943, 3947, 5357, 10373, 11201, 19967, 43417, 90781, 123211, 161827, 219637, 459241, 998591, 1780097, 1922189, 3722021, 5051651, 21144079, 40942231, 44210347, 78809749, 486313817, 866907239, 1812624227, 19938866497]

約数ペア:

[(1, 19938866497), (11, 1812624227), (23, 866907239), (41, 486313817), (253, 78809749), (451, 44210347), (487, 40942231), (943, 21144079), (3947, 5051651), (5357, 3722021), (10373, 1922189), (11201, 1780097), (19967, 998591), (43417, 459241), (90781, 219637), (123211, 161827)]