21264661

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 24672032

約数和(自身を除く): 3407371

約数列:

[1, 11, 43, 61, 67, 121, 473, 671, 737, 2623, 2881, 4087, 5203, 7381, 8107, 28853, 31691, 44957, 175741, 317383, 348601, 494527, 1933151, 21264661]

約数ペア:

[(1, 21264661), (11, 1933151), (43, 494527), (61, 348601), (67, 317383), (121, 175741), (473, 44957), (671, 31691), (737, 28853), (2623, 8107), (2881, 7381), (4087, 5203)]