20512690653

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{548453}}^1$

素因数の和:548613

約数の個数: 32

約数和(自身を含む): 33907620096

約数和(自身を除く): 13394929443

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 273, 411, 959, 1781, 2877, 5343, 12467, 37401, 548453, 1645359, 3839171, 7129889, 11517513, 21389667, 49909223, 75138061, 149727669, 225414183, 525966427, 976794793, 1577899281, 2930384379, 6837563551, 20512690653]

約数ペア:

[(1, 20512690653), (3, 6837563551), (7, 2930384379), (13, 1577899281), (21, 976794793), (39, 525966427), (91, 225414183), (137, 149727669), (273, 75138061), (411, 49909223), (959, 21389667), (1781, 11517513), (2877, 7129889), (5343, 3839171), (12467, 1645359), (37401, 548453)]