20197437

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 30952320

約数和(自身を除く): 10754883

約数列:

[1, 3, 13, 19, 39, 57, 97, 247, 281, 291, 741, 843, 1261, 1843, 3653, 3783, 5339, 5529, 10959, 16017, 23959, 27257, 69407, 71877, 81771, 208221, 354341, 517883, 1063023, 1553649, 6732479, 20197437]

約数ペア:

[(1, 20197437), (3, 6732479), (13, 1553649), (19, 1063023), (39, 517883), (57, 354341), (97, 208221), (247, 81771), (281, 71877), (291, 69407), (741, 27257), (843, 23959), (1261, 16017), (1843, 10959), (3653, 5529), (3783, 5339)]