180897129

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{20959}}^1$

素因数の和:21109

約数の個数: 24

約数和(自身を含む): 300817920

約数和(自身を除く): 119920791

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 8631, 20959, 62877, 146713, 188631, 440139, 1320417, 2871383, 8614149, 20099681, 25842447, 60299043, 180897129]

約数ペア:

[(1, 180897129), (3, 60299043), (7, 25842447), (9, 20099681), (21, 8614149), (63, 2871383), (137, 1320417), (411, 440139), (959, 188631), (1233, 146713), (2877, 62877), (8631, 20959)]