21924903

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 40320000

約数和(自身を除く): 18395097

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 149, 231, 273, 343, 429, 447, 539, 637, 1001, 1029, 1043, 1617, 1639, 1911, 1937, 3003, 3129, 3773, 4459, 4917, 5811, 7007, 7301, 11319, 11473, 13377, 13559, 21021, 21307, 21903, 34419, 40677, 49049, 51107, 63921, 80311, 94913, 147147, 149149, 153321, 240933, 284739, 447447, 562177, 664391, 1044043, 1686531, 1993173, 3132129, 7308301, 21924903]

約数ペア:

[(1, 21924903), (3, 7308301), (7, 3132129), (11, 1993173), (13, 1686531), (21, 1044043), (33, 664391), (39, 562177), (49, 447447), (77, 284739), (91, 240933), (143, 153321), (147, 149149), (149, 147147), (231, 94913), (273, 80311), (343, 63921), (429, 51107), (447, 49049), (539, 40677), (637, 34419), (1001, 21903), (1029, 21307), (1043, 21021), (1617, 13559), (1639, 13377), (1911, 11473), (1937, 11319), (3003, 7301), (3129, 7007), (3773, 5811), (4459, 4917)]