21000723292801

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{47743}}^1\times {\mathrm{147163}}^1$

素因数の和:194981

約数の個数: 24

約数和(自身を含む): 24830583788544

約数和(自身を除く): 3829860495743

約数列:

[1, 7, 49, 61, 427, 2989, 47743, 147163, 334201, 1030141, 2339407, 2912323, 7210987, 8976943, 20386261, 62838601, 142703827, 439870207, 7026003109, 49182021763, 344274152341, 428586189649, 3000103327543, 21000723292801]

約数ペア:

[(1, 21000723292801), (7, 3000103327543), (49, 428586189649), (61, 344274152341), (427, 49182021763), (2989, 7026003109), (47743, 439870207), (147163, 142703827), (334201, 62838601), (1030141, 20386261), (2339407, 8976943), (2912323, 7210987)]