19156907

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 25850880

約数和(自身を除く): 6693973

約数列:

[1, 7, 11, 23, 29, 77, 161, 203, 253, 319, 373, 667, 1771, 2233, 2611, 4103, 4669, 7337, 8579, 10817, 28721, 51359, 60053, 75719, 94369, 118987, 248791, 660583, 832909, 1741537, 2736701, 19156907]

約数ペア:

[(1, 19156907), (7, 2736701), (11, 1741537), (23, 832909), (29, 660583), (77, 248791), (161, 118987), (203, 94369), (253, 75719), (319, 60053), (373, 51359), (667, 28721), (1771, 10817), (2233, 8579), (2611, 7337), (4103, 4669)]