19540269

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{751}}^1$

素因数の和:830

約数の個数: 36

約数和(自身を含む): 33433920

約数和(自身を除く): 13893651

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 751, 1239, 2253, 2891, 3717, 5257, 6759, 8673, 15771, 26019, 36799, 44309, 47313, 110397, 132927, 310163, 331191, 398781, 930489, 2171141, 2791467, 6513423, 19540269]

約数ペア:

[(1, 19540269), (3, 6513423), (7, 2791467), (9, 2171141), (21, 930489), (49, 398781), (59, 331191), (63, 310163), (147, 132927), (177, 110397), (413, 47313), (441, 44309), (531, 36799), (751, 26019), (1239, 15771), (2253, 8673), (2891, 6759), (3717, 5257)]