81863254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 136580256

約数和(自身を除く): 54717002

約数列:

[1, 2, 11, 22, 137, 157, 173, 274, 314, 346, 1507, 1727, 1903, 3014, 3454, 3806, 21509, 23701, 27161, 43018, 47402, 54322, 236599, 260711, 298771, 473198, 521422, 597542, 3721057, 7442114, 40931627, 81863254]

約数ペア:

[(1, 81863254), (2, 40931627), (11, 7442114), (22, 3721057), (137, 597542), (157, 521422), (173, 473198), (274, 298771), (314, 260711), (346, 236599), (1507, 54322), (1727, 47402), (1903, 43018), (3014, 27161), (3454, 23701), (3806, 21509)]