19827423

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2$

素因数の和:75

約数の個数: 90

約数和(自身を含む): 39524408

約数和(自身を除く): 19696985

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 63, 77, 81, 99, 119, 121, 153, 187, 189, 231, 289, 297, 357, 363, 459, 561, 567, 693, 847, 867, 891, 1071, 1089, 1309, 1377, 1683, 2023, 2057, 2079, 2541, 2601, 3179, 3213, 3267, 3927, 5049, 6069, 6171, 6237, 7623, 7803, 9537, 9639, 9801, 11781, 14399, 15147, 18207, 18513, 22253, 22869, 23409, 28611, 34969, 35343, 43197, 54621, 55539, 66759, 68607, 85833, 104907, 106029, 129591, 163863, 166617, 200277, 244783, 257499, 314721, 388773, 600831, 734349, 944163, 1166319, 1802493, 2203047, 2832489, 6609141, 19827423]

約数ペア:

[(1, 19827423), (3, 6609141), (7, 2832489), (9, 2203047), (11, 1802493), (17, 1166319), (21, 944163), (27, 734349), (33, 600831), (51, 388773), (63, 314721), (77, 257499), (81, 244783), (99, 200277), (119, 166617), (121, 163863), (153, 129591), (187, 106029), (189, 104907), (231, 85833), (289, 68607), (297, 66759), (357, 55539), (363, 54621), (459, 43197), (561, 35343), (567, 34969), (693, 28611), (847, 23409), (867, 22869), (891, 22253), (1071, 18513), (1089, 18207), (1309, 15147), (1377, 14399), (1683, 11781), (2023, 9801), (2057, 9639), (2079, 9537), (2541, 7803), (2601, 7623), (3179, 6237), (3213, 6171), (3267, 6069), (3927, 5049)]