40490121

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 67056000

約数和(自身を除く): 26565879

約数列:

[1, 3, 7, 19, 21, 49, 57, 109, 133, 147, 327, 343, 361, 399, 763, 931, 1029, 1083, 2071, 2289, 2527, 2793, 5341, 6213, 6517, 7581, 14497, 16023, 17689, 19551, 37387, 39349, 43491, 53067, 101479, 112161, 118047, 123823, 275443, 304437, 371469, 710353, 826329, 1928101, 2131059, 5784303, 13496707, 40490121]

約数ペア:

[(1, 40490121), (3, 13496707), (7, 5784303), (19, 2131059), (21, 1928101), (49, 826329), (57, 710353), (109, 371469), (133, 304437), (147, 275443), (327, 123823), (343, 118047), (361, 112161), (399, 101479), (763, 53067), (931, 43491), (1029, 39349), (1083, 37387), (2071, 19551), (2289, 17689), (2527, 16023), (2793, 14497), (5341, 7581), (6213, 6517)]