21631293

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{683}}^1$

素因数の和:735

約数の個数: 40

約数和(自身を含む): 35754048

約数和(自身を除く): 14122755

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 683, 1173, 1377, 1863, 2049, 3519, 6147, 10557, 11611, 15709, 18441, 31671, 34833, 47127, 55323, 104499, 141381, 267053, 313497, 424143, 801159, 940491, 1272429, 2403477, 7210431, 21631293]

約数ペア:

[(1, 21631293), (3, 7210431), (9, 2403477), (17, 1272429), (23, 940491), (27, 801159), (51, 424143), (69, 313497), (81, 267053), (153, 141381), (207, 104499), (391, 55323), (459, 47127), (621, 34833), (683, 31671), (1173, 18441), (1377, 15709), (1863, 11611), (2049, 10557), (3519, 6147)]