648787971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1\times {\mathrm{2027}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 967599360

約数和(自身を除く): 318811389

約数列:

[1, 3, 13, 29, 39, 87, 283, 377, 849, 1131, 2027, 3679, 6081, 8207, 11037, 24621, 26351, 58783, 79053, 106691, 176349, 320073, 573641, 764179, 1720923, 2292537, 7457333, 16635589, 22371999, 49906767, 216262657, 648787971]

約数ペア:

[(1, 648787971), (3, 216262657), (13, 49906767), (29, 22371999), (39, 16635589), (87, 7457333), (283, 2292537), (377, 1720923), (849, 764179), (1131, 573641), (2027, 320073), (3679, 176349), (6081, 106691), (8207, 79053), (11037, 58783), (24621, 26351)]