208808649

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 367630848

約数和(自身を除く): 158822199

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 67, 111, 147, 191, 201, 259, 333, 441, 469, 573, 603, 777, 1337, 1407, 1719, 1813, 2331, 2479, 3283, 4011, 4221, 5439, 7067, 7437, 9359, 9849, 12033, 12797, 16317, 17353, 21201, 22311, 28077, 29547, 38391, 49469, 52059, 63603, 84231, 89579, 115173, 121471, 148407, 156177, 268737, 346283, 364413, 445221, 473489, 627053, 806211, 1038849, 1093239, 1420467, 1881159, 3116547, 3314423, 4261401, 5643477, 9943269, 23200961, 29829807, 69602883, 208808649]

約数ペア:

[(1, 208808649), (3, 69602883), (7, 29829807), (9, 23200961), (21, 9943269), (37, 5643477), (49, 4261401), (63, 3314423), (67, 3116547), (111, 1881159), (147, 1420467), (191, 1093239), (201, 1038849), (259, 806211), (333, 627053), (441, 473489), (469, 445221), (573, 364413), (603, 346283), (777, 268737), (1337, 156177), (1407, 148407), (1719, 121471), (1813, 115173), (2331, 89579), (2479, 84231), (3283, 63603), (4011, 52059), (4221, 49469), (5439, 38391), (7067, 29547), (7437, 28077), (9359, 22311), (9849, 21201), (12033, 17353), (12797, 16317)]