19989255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9319}}^1$

素因数の和:9351

約数の個数: 32

約数和(自身を含む): 37578240

約数和(自身を除く): 17588985

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9319, 27957, 46595, 102509, 121147, 139785, 307527, 363441, 512545, 605735, 1332617, 1537635, 1817205, 3997851, 6663085, 19989255]

約数ペア:

[(1, 19989255), (3, 6663085), (5, 3997851), (11, 1817205), (13, 1537635), (15, 1332617), (33, 605735), (39, 512545), (55, 363441), (65, 307527), (143, 139785), (165, 121147), (195, 102509), (429, 46595), (715, 27957), (2145, 9319)]