21044961

素因数分解:

$3^3\times 7^2\times {\mathrm{15907}}^1$

素因数の和:15930

約数の個数: 24

約数和(自身を含む): 36270240

約数和(自身を除く): 15225279

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15907, 47721, 111349, 143163, 334047, 429489, 779443, 1002141, 2338329, 3006423, 7014987, 21044961]

約数ペア:

[(1, 21044961), (3, 7014987), (7, 3006423), (9, 2338329), (21, 1002141), (27, 779443), (49, 429489), (63, 334047), (147, 143163), (189, 111349), (441, 47721), (1323, 15907)]