19813409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 7143391

約数列:

[1, 7, 11, 19, 29, 77, 133, 203, 209, 319, 467, 551, 1463, 2233, 3269, 3857, 5137, 6061, 8873, 13543, 35959, 42427, 62111, 94801, 97603, 148973, 257317, 683221, 1042811, 1801219, 2830487, 19813409]

約数ペア:

[(1, 19813409), (7, 2830487), (11, 1801219), (19, 1042811), (29, 683221), (77, 257317), (133, 148973), (203, 97603), (209, 94801), (319, 62111), (467, 42427), (551, 35959), (1463, 13543), (2233, 8873), (3269, 6061), (3857, 5137)]