19121885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 25681920

約数和(自身を除く): 6560035

約数列:

[1, 5, 19, 31, 43, 95, 151, 155, 215, 589, 755, 817, 1333, 2869, 2945, 4085, 4681, 6493, 6665, 14345, 23405, 25327, 32465, 88939, 123367, 126635, 201283, 444695, 616835, 1006415, 3824377, 19121885]

約数ペア:

[(1, 19121885), (5, 3824377), (19, 1006415), (31, 616835), (43, 444695), (95, 201283), (151, 126635), (155, 123367), (215, 88939), (589, 32465), (755, 25327), (817, 23405), (1333, 14345), (2869, 6665), (2945, 6493), (4085, 4681)]