20281305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1217}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 35779968

約数和(自身を除く): 15498663

約数列:

[1, 3, 5, 11, 15, 33, 55, 101, 165, 303, 505, 1111, 1217, 1515, 3333, 3651, 5555, 6085, 13387, 16665, 18255, 40161, 66935, 122917, 200805, 368751, 614585, 1352087, 1843755, 4056261, 6760435, 20281305]

約数ペア:

[(1, 20281305), (3, 6760435), (5, 4056261), (11, 1843755), (15, 1352087), (33, 614585), (55, 368751), (101, 200805), (165, 122917), (303, 66935), (505, 40161), (1111, 18255), (1217, 16665), (1515, 13387), (3333, 6085), (3651, 5555)]