28214109

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 53544960

約数和(自身を除く): 25330851

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 41, 63, 77, 99, 123, 189, 231, 287, 297, 331, 369, 451, 693, 861, 993, 1107, 1353, 2079, 2317, 2583, 2979, 3157, 3641, 4059, 6951, 7749, 8937, 9471, 10923, 12177, 13571, 20853, 25487, 28413, 32769, 40713, 62559, 76461, 85239, 94997, 98307, 122139, 149281, 229383, 284991, 366417, 447843, 688149, 854973, 1044967, 1343529, 2564919, 3134901, 4030587, 9404703, 28214109]

約数ペア:

[(1, 28214109), (3, 9404703), (7, 4030587), (9, 3134901), (11, 2564919), (21, 1343529), (27, 1044967), (33, 854973), (41, 688149), (63, 447843), (77, 366417), (99, 284991), (123, 229383), (189, 149281), (231, 122139), (287, 98307), (297, 94997), (331, 85239), (369, 76461), (451, 62559), (693, 40713), (861, 32769), (993, 28413), (1107, 25487), (1353, 20853), (2079, 13571), (2317, 12177), (2583, 10923), (2979, 9471), (3157, 8937), (3641, 7749), (4059, 6951)]