21108692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43613}}^1$

素因数の和:43639

約数の個数: 18

約数和(自身を含む): 40604634

約数和(自身を除く): 19495942

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43613, 87226, 174452, 479743, 959486, 1918972, 5277173, 10554346, 21108692]

約数ペア:

[(1, 21108692), (2, 10554346), (4, 5277173), (11, 1918972), (22, 959486), (44, 479743), (121, 174452), (242, 87226), (484, 43613)]