21461187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 32431104

約数和(自身を除く): 10969917

約数列:

[1, 3, 11, 33, 47, 101, 137, 141, 303, 411, 517, 1111, 1507, 1551, 3333, 4521, 4747, 6439, 13837, 14241, 19317, 41511, 52217, 70829, 152207, 156651, 212487, 456621, 650339, 1951017, 7153729, 21461187]

約数ペア:

[(1, 21461187), (3, 7153729), (11, 1951017), (33, 650339), (47, 456621), (101, 212487), (137, 156651), (141, 152207), (303, 70829), (411, 52217), (517, 41511), (1111, 19317), (1507, 14241), (1551, 13837), (3333, 6439), (4521, 4747)]