20406681

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1933}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 33419520

約数和(自身を除く): 13012839

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 1933, 3519, 5799, 10557, 17397, 32861, 44459, 52191, 98583, 133377, 295749, 400131, 755803, 887247, 1200393, 2267409, 6802227, 20406681]

約数ペア:

[(1, 20406681), (3, 6802227), (9, 2267409), (17, 1200393), (23, 887247), (27, 755803), (51, 400131), (69, 295749), (153, 133377), (207, 98583), (391, 52191), (459, 44459), (621, 32861), (1173, 17397), (1933, 10557), (3519, 5799)]