72213889

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 84651840

約数和(自身を除く): 12437951

約数列:

[1, 11, 19, 101, 121, 209, 311, 1111, 1919, 2299, 3421, 5909, 12221, 21109, 31411, 37631, 64999, 232199, 345521, 596809, 714989, 3800731, 6564899, 72213889]

約数ペア:

[(1, 72213889), (11, 6564899), (19, 3800731), (101, 714989), (121, 596809), (209, 345521), (311, 232199), (1111, 64999), (1919, 37631), (2299, 31411), (3421, 21109), (5909, 12221)]