21494956473

素因数分解:

$3^6\times {\mathrm{2143}}^1\times {\mathrm{13759}}^1$

素因数の和:15920

約数の個数: 28

約数和(自身を含む): 32245073920

約数和(自身を除く): 10750117447

約数列:

[1, 3, 9, 27, 81, 243, 729, 2143, 6429, 13759, 19287, 41277, 57861, 123831, 173583, 371493, 520749, 1114479, 1562247, 3343437, 10030311, 29485537, 88456611, 265369833, 796109499, 2388328497, 7164985491, 21494956473]

約数ペア:

[(1, 21494956473), (3, 7164985491), (9, 2388328497), (27, 796109499), (81, 265369833), (243, 88456611), (729, 29485537), (2143, 10030311), (6429, 3343437), (13759, 1562247), (19287, 1114479), (41277, 520749), (57861, 371493), (123831, 173583)]