129836721

素因数分解:

$3^1\times 7^2\times {\mathrm{283}}^1\times {\mathrm{3121}}^1$

素因数の和:3421

約数の個数: 24

約数和(自身を含む): 202155744

約数和(自身を除く): 72319023

約数列:

[1, 3, 7, 21, 49, 147, 283, 849, 1981, 3121, 5943, 9363, 13867, 21847, 41601, 65541, 152929, 458787, 883243, 2649729, 6182701, 18548103, 43278907, 129836721]

約数ペア:

[(1, 129836721), (3, 43278907), (7, 18548103), (21, 6182701), (49, 2649729), (147, 883243), (283, 458787), (849, 152929), (1981, 65541), (3121, 41601), (5943, 21847), (9363, 13867)]