19960171

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 26085888

約数和(自身を除く): 6125717

約数列:

[1, 7, 11, 53, 67, 73, 77, 371, 469, 511, 583, 737, 803, 3551, 3869, 4081, 4891, 5159, 5621, 24857, 27083, 34237, 39061, 42559, 53801, 259223, 273427, 297913, 376607, 1814561, 2851453, 19960171]

約数ペア:

[(1, 19960171), (7, 2851453), (11, 1814561), (53, 376607), (67, 297913), (73, 273427), (77, 259223), (371, 53801), (469, 42559), (511, 39061), (583, 34237), (737, 27083), (803, 24857), (3551, 5621), (3869, 5159), (4081, 4891)]