18975385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{26539}}^1$

素因数の和:26568

約数の個数: 16

約数和(自身を含む): 26752320

約数和(自身を除く): 7776935

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 26539, 132695, 291929, 345007, 1459645, 1725035, 3795077, 18975385]

約数ペア:

[(1, 18975385), (5, 3795077), (11, 1725035), (13, 1459645), (55, 345007), (65, 291929), (143, 132695), (715, 26539)]