21237364

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2713}}^1$

素因数の和:2839

約数の個数: 24

約数和(自身を含む): 39515840

約数和(自身を除く): 18278476

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2713, 3914, 5426, 7828, 10852, 51547, 103094, 206188, 279439, 558878, 1117756, 5309341, 10618682, 21237364]

約数ペア:

[(1, 21237364), (2, 10618682), (4, 5309341), (19, 1117756), (38, 558878), (76, 279439), (103, 206188), (206, 103094), (412, 51547), (1957, 10852), (2713, 7828), (3914, 5426)]