21742545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 38162304

約数和(自身を除く): 16419759

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 313, 421, 939, 1263, 1565, 2105, 3443, 4631, 4695, 6315, 10329, 13893, 17215, 23155, 51645, 69465, 131773, 395319, 658865, 1449503, 1976595, 4348509, 7247515, 21742545]

約数ペア:

[(1, 21742545), (3, 7247515), (5, 4348509), (11, 1976595), (15, 1449503), (33, 658865), (55, 395319), (165, 131773), (313, 69465), (421, 51645), (939, 23155), (1263, 17215), (1565, 13893), (2105, 10329), (3443, 6315), (4631, 4695)]