81574619

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 105177600

約数和(自身を除く): 23602981

約数列:

[1, 7, 17, 19, 109, 119, 133, 323, 331, 763, 1853, 2071, 2261, 2317, 5627, 6289, 12971, 14497, 35207, 36079, 39389, 44023, 106913, 246449, 252553, 613343, 685501, 748391, 4293401, 4798507, 11653517, 81574619]

約数ペア:

[(1, 81574619), (7, 11653517), (17, 4798507), (19, 4293401), (109, 748391), (119, 685501), (133, 613343), (323, 252553), (331, 246449), (763, 106913), (1853, 44023), (2071, 39389), (2261, 36079), (2317, 35207), (5627, 14497), (6289, 12971)]