18537939

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 15607341

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 911, 969, 1071, 1197, 2261, 2733, 2907, 6377, 6783, 8199, 15487, 17309, 19131, 20349, 46461, 51927, 57393, 108409, 121163, 139383, 155781, 294253, 325227, 363489, 882759, 975681, 1090467, 2059771, 2648277, 6179313, 18537939]

約数ペア:

[(1, 18537939), (3, 6179313), (7, 2648277), (9, 2059771), (17, 1090467), (19, 975681), (21, 882759), (51, 363489), (57, 325227), (63, 294253), (119, 155781), (133, 139383), (153, 121163), (171, 108409), (323, 57393), (357, 51927), (399, 46461), (911, 20349), (969, 19131), (1071, 17309), (1197, 15487), (2261, 8199), (2733, 6783), (2907, 6377)]