19968773495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{77101}}^1$

素因数の和:77411

約数の個数: 32

約数和(自身を含む): 27778925376

約数和(自身を除く): 7810151881

約数列:

[1, 5, 11, 17, 55, 85, 187, 277, 935, 1385, 3047, 4709, 15235, 23545, 51799, 77101, 258995, 385505, 848111, 1310717, 4240555, 6553585, 14417887, 21356977, 72089435, 106784885, 234926747, 363068609, 1174633735, 1815343045, 3993754699, 19968773495]

約数ペア:

[(1, 19968773495), (5, 3993754699), (11, 1815343045), (17, 1174633735), (55, 363068609), (85, 234926747), (187, 106784885), (277, 72089435), (935, 21356977), (1385, 14417887), (3047, 6553585), (4709, 4240555), (15235, 1310717), (23545, 848111), (51799, 385505), (77101, 258995)]