66978933

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23981}}^1$

素因数の和:24017

約数の個数: 24

約数和(自身を含む): 109357920

約数和(自身を除く): 42378987

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 23981, 71943, 167867, 455639, 503601, 1175069, 1366917, 3189473, 3525207, 9568419, 22326311, 66978933]

約数ペア:

[(1, 66978933), (3, 22326311), (7, 9568419), (19, 3525207), (21, 3189473), (49, 1366917), (57, 1175069), (133, 503601), (147, 455639), (399, 167867), (931, 71943), (2793, 23981)]