20397492087

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23690467}}^1$

素因数の和:23690518

約数の個数: 16

約数和(自身を含む): 31839988992

約数和(自身を除く): 11442496905

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23690467, 71071401, 165833269, 497499807, 971309147, 2913927441, 6799164029, 20397492087]

約数ペア:

[(1, 20397492087), (3, 6799164029), (7, 2913927441), (21, 971309147), (41, 497499807), (123, 165833269), (287, 71071401), (861, 23690467)]