20289933

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10891}}^1$

素因数の和:10926

約数の個数: 20

約数和(自身を含む): 31630368

約数和(自身を除く): 11340435

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10891, 32673, 98019, 250493, 294057, 751479, 882171, 2254437, 6763311, 20289933]

約数ペア:

[(1, 20289933), (3, 6763311), (9, 2254437), (23, 882171), (27, 751479), (69, 294057), (81, 250493), (207, 98019), (621, 32673), (1863, 10891)]