21379908

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{161969}}^1$

素因数の和:161987

約数の個数: 24

約数和(自身を含む): 54421920

約数和(自身を除く): 33042012

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 161969, 323938, 485907, 647876, 971814, 1781659, 1943628, 3563318, 5344977, 7126636, 10689954, 21379908]

約数ペア:

[(1, 21379908), (2, 10689954), (3, 7126636), (4, 5344977), (6, 3563318), (11, 1943628), (12, 1781659), (22, 971814), (33, 647876), (44, 485907), (66, 323938), (132, 161969)]