21309145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29803}}^1$

素因数の和:29832

約数の個数: 16

約数和(自身を含む): 30042432

約数和(自身を除く): 8733287

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29803, 149015, 327833, 387439, 1639165, 1937195, 4261829, 21309145]

約数ペア:

[(1, 21309145), (5, 4261829), (11, 1937195), (13, 1639165), (55, 387439), (65, 327833), (143, 149015), (715, 29803)]