20812029

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 33981696

約数和(自身を除く): 13169667

約数列:

[1, 3, 7, 17, 21, 51, 97, 119, 291, 357, 601, 679, 1649, 1803, 2037, 4207, 4947, 10217, 11543, 12621, 30651, 34629, 58297, 71519, 174891, 214557, 408079, 991049, 1224237, 2973147, 6937343, 20812029]

約数ペア:

[(1, 20812029), (3, 6937343), (7, 2973147), (17, 1224237), (21, 991049), (51, 408079), (97, 214557), (119, 174891), (291, 71519), (357, 58297), (601, 34629), (679, 30651), (1649, 12621), (1803, 11543), (2037, 10217), (4207, 4947)]