21777591

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{739}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 34099200

約数和(自身を除く): 12321609

約数列:

[1, 3, 11, 19, 33, 47, 57, 141, 209, 517, 627, 739, 893, 1551, 2217, 2679, 8129, 9823, 14041, 24387, 29469, 34733, 42123, 104199, 154451, 382063, 463353, 659927, 1146189, 1979781, 7259197, 21777591]

約数ペア:

[(1, 21777591), (3, 7259197), (11, 1979781), (19, 1146189), (33, 659927), (47, 463353), (57, 382063), (141, 154451), (209, 104199), (517, 42123), (627, 34733), (739, 29469), (893, 24387), (1551, 14041), (2217, 9823), (2679, 8129)]