19275905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 25714752

約数和(自身を除く): 6438847

約数列:

[1, 5, 11, 55, 121, 151, 211, 605, 755, 1055, 1661, 2321, 8305, 11605, 18271, 25531, 31861, 91355, 127655, 159305, 350471, 1752355, 3855181, 19275905]

約数ペア:

[(1, 19275905), (5, 3855181), (11, 1752355), (55, 350471), (121, 159305), (151, 127655), (211, 91355), (605, 31861), (755, 25531), (1055, 18271), (1661, 11605), (2321, 8305)]