21327025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 28346400

約数和(自身を除く): 7019375

約数列:

[1, 5, 19, 25, 59, 95, 295, 475, 761, 1121, 1475, 3805, 5605, 14459, 19025, 28025, 44899, 72295, 224495, 361475, 853081, 1122475, 4265405, 21327025]

約数ペア:

[(1, 21327025), (5, 4265405), (19, 1122475), (25, 853081), (59, 361475), (95, 224495), (295, 72295), (475, 44899), (761, 28025), (1121, 19025), (1475, 14459), (3805, 5605)]