21682059

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1152

約数の個数: 32

約数和(自身を含む): 35520000

約数和(自身を除く): 13837941

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1109, 2793, 3327, 6517, 7763, 19551, 21071, 23289, 54341, 63213, 147497, 163023, 380387, 442491, 1032479, 1141161, 3097437, 7227353, 21682059]

約数ペア:

[(1, 21682059), (3, 7227353), (7, 3097437), (19, 1141161), (21, 1032479), (49, 442491), (57, 380387), (133, 163023), (147, 147497), (343, 63213), (399, 54341), (931, 23289), (1029, 21071), (1109, 19551), (2793, 7763), (3327, 6517)]