21471729

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{10181}}^1$

素因数の和:10240

約数の個数: 16

約数和(自身を含む): 30953280

約数和(自身を除く): 9481551

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 10181, 30543, 193439, 376697, 580317, 1130091, 7157243, 21471729]

約数ペア:

[(1, 21471729), (3, 7157243), (19, 1130091), (37, 580317), (57, 376697), (111, 193439), (703, 30543), (2109, 10181)]