20545644

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{883}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 55048448

約数和(自身を除く): 34502804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 277, 554, 831, 883, 1108, 1662, 1766, 1939, 2649, 3324, 3532, 3878, 5298, 5817, 6181, 7756, 10596, 11634, 12362, 18543, 23268, 24724, 37086, 74172, 244591, 489182, 733773, 978364, 1467546, 1712137, 2935092, 3424274, 5136411, 6848548, 10272822, 20545644]

約数ペア:

[(1, 20545644), (2, 10272822), (3, 6848548), (4, 5136411), (6, 3424274), (7, 2935092), (12, 1712137), (14, 1467546), (21, 978364), (28, 733773), (42, 489182), (84, 244591), (277, 74172), (554, 37086), (831, 24724), (883, 23268), (1108, 18543), (1662, 12362), (1766, 11634), (1939, 10596), (2649, 7756), (3324, 6181), (3532, 5817), (3878, 5298)]