21321873

素因数分解:

$3^4\times {\mathrm{29}}^2\times {\mathrm{313}}^1$

素因数の和:383

約数の個数: 30

約数和(自身を含む): 33092774

約数和(自身を除く): 11770901

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 313, 783, 841, 939, 2349, 2523, 2817, 7569, 8451, 9077, 22707, 25353, 27231, 68121, 81693, 245079, 263233, 735237, 789699, 2369097, 7107291, 21321873]

約数ペア:

[(1, 21321873), (3, 7107291), (9, 2369097), (27, 789699), (29, 735237), (81, 263233), (87, 245079), (261, 81693), (313, 68121), (783, 27231), (841, 25353), (939, 22707), (2349, 9077), (2523, 8451), (2817, 7569)]