21000612339

素因数分解:

$3^5\times 7^1\times {\mathrm{947}}^1\times {\mathrm{13037}}^1$

素因数の和:14006

約数の個数: 48

約数和(自身を含む): 35992389888

約数和(自身を除く): 14991777549

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 947, 1701, 2841, 6629, 8523, 13037, 19887, 25569, 39111, 59661, 76707, 91259, 117333, 178983, 230121, 273777, 351999, 536949, 821331, 1055997, 1610847, 2463993, 3167991, 7391979, 12346039, 22175937, 37038117, 86422273, 111114351, 259266819, 333343053, 777800457, 1000029159, 2333401371, 3000087477, 7000204113, 21000612339]

約数ペア:

[(1, 21000612339), (3, 7000204113), (7, 3000087477), (9, 2333401371), (21, 1000029159), (27, 777800457), (63, 333343053), (81, 259266819), (189, 111114351), (243, 86422273), (567, 37038117), (947, 22175937), (1701, 12346039), (2841, 7391979), (6629, 3167991), (8523, 2463993), (13037, 1610847), (19887, 1055997), (25569, 821331), (39111, 536949), (59661, 351999), (76707, 273777), (91259, 230121), (117333, 178983)]