20782671

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{283}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 13569969

約数列:

[1, 3, 7, 13, 21, 39, 91, 269, 273, 283, 807, 849, 1883, 1981, 3497, 3679, 5649, 5943, 10491, 11037, 24479, 25753, 73437, 76127, 77259, 228381, 532889, 989651, 1598667, 2968953, 6927557, 20782671]

約数ペア:

[(1, 20782671), (3, 6927557), (7, 2968953), (13, 1598667), (21, 989651), (39, 532889), (91, 228381), (269, 77259), (273, 76127), (283, 73437), (807, 25753), (849, 24479), (1883, 11037), (1981, 10491), (3497, 5943), (3679, 5649)]