21286441

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 3994199

約数列:

[1, 11, 19, 47, 121, 197, 209, 517, 893, 2167, 2299, 3743, 5687, 9259, 9823, 23837, 41173, 101849, 108053, 175921, 452903, 1120339, 1935131, 21286441]

約数ペア:

[(1, 21286441), (11, 1935131), (19, 1120339), (47, 452903), (121, 175921), (197, 108053), (209, 101849), (517, 41173), (893, 23837), (2167, 9823), (2299, 9259), (3743, 5687)]