21167667025

素因数分解:

$5^2\times {\mathrm{769}}^1\times {\mathrm{809}}^1\times {\mathrm{1361}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 26333861400

約数和(自身を除く): 5166194375

約数列:

[1, 5, 25, 769, 809, 1361, 3845, 4045, 6805, 19225, 20225, 34025, 622121, 1046609, 1101049, 3110605, 5233045, 5505245, 15553025, 26165225, 27526225, 846706681, 4233533405, 21167667025]

約数ペア:

[(1, 21167667025), (5, 4233533405), (25, 846706681), (769, 27526225), (809, 26165225), (1361, 15553025), (3845, 5505245), (4045, 5233045), (6805, 3110605), (19225, 1101049), (20225, 1046609), (34025, 622121)]