27811497

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1693

約数の個数: 32

約数和(自身を含む): 45675520

約数和(自身を除く): 17864023

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1621, 2451, 4863, 5719, 11347, 17157, 30799, 34041, 69703, 92397, 209109, 215593, 487921, 646779, 1324357, 1463763, 3973071, 9270499, 27811497]

約数ペア:

[(1, 27811497), (3, 9270499), (7, 3973071), (19, 1463763), (21, 1324357), (43, 646779), (57, 487921), (129, 215593), (133, 209109), (301, 92397), (399, 69703), (817, 34041), (903, 30799), (1621, 17157), (2451, 11347), (4863, 5719)]