20786733

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 16538067

約数列:

[1, 3, 9, 11, 17, 23, 27, 33, 51, 69, 99, 153, 179, 187, 207, 253, 297, 391, 459, 537, 561, 621, 759, 1173, 1611, 1683, 1969, 2277, 3043, 3519, 4117, 4301, 4833, 5049, 5907, 6831, 9129, 10557, 12351, 12903, 17721, 27387, 33473, 37053, 38709, 45287, 53163, 69989, 82161, 100419, 111159, 116127, 135861, 209967, 301257, 407583, 629901, 769879, 903771, 1222749, 1889703, 2309637, 6928911, 20786733]

約数ペア:

[(1, 20786733), (3, 6928911), (9, 2309637), (11, 1889703), (17, 1222749), (23, 903771), (27, 769879), (33, 629901), (51, 407583), (69, 301257), (99, 209967), (153, 135861), (179, 116127), (187, 111159), (207, 100419), (253, 82161), (297, 69989), (391, 53163), (459, 45287), (537, 38709), (561, 37053), (621, 33473), (759, 27387), (1173, 17721), (1611, 12903), (1683, 12351), (1969, 10557), (2277, 9129), (3043, 6831), (3519, 5907), (4117, 5049), (4301, 4833)]