19689735

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2729}}^1$

素因数の和:2787

約数の個数: 32

約数和(自身を含む): 34856640

約数和(自身を除く): 15166905

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 2729, 7215, 8187, 13645, 35477, 40935, 100973, 106431, 177385, 302919, 504865, 532155, 1312649, 1514595, 3937947, 6563245, 19689735]

約数ペア:

[(1, 19689735), (3, 6563245), (5, 3937947), (13, 1514595), (15, 1312649), (37, 532155), (39, 504865), (65, 302919), (111, 177385), (185, 106431), (195, 100973), (481, 40935), (555, 35477), (1443, 13645), (2405, 8187), (2729, 7215)]