20992671

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1153}}^1$

素因数の和:1200

約数の個数: 36

約数和(自身を含む): 36844912

約数和(自身を除く): 15852241

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 289, 357, 867, 1071, 1153, 2023, 2601, 3459, 6069, 8071, 10377, 18207, 19601, 24213, 58803, 72639, 137207, 176409, 333217, 411621, 999651, 1234863, 2332519, 2998953, 6997557, 20992671]

約数ペア:

[(1, 20992671), (3, 6997557), (7, 2998953), (9, 2332519), (17, 1234863), (21, 999651), (51, 411621), (63, 333217), (119, 176409), (153, 137207), (289, 72639), (357, 58803), (867, 24213), (1071, 19601), (1153, 18207), (2023, 10377), (2601, 8071), (3459, 6069)]