21000369726

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{1171}}^1\times {\mathrm{20333}}^1$

素因数の和:21526

約数の個数: 72

約数和(自身を含む): 52977308904

約数和(自身を除く): 31976939178

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 1171, 2342, 3513, 7026, 8197, 10539, 16394, 20333, 21078, 24591, 40666, 49182, 57379, 60999, 73773, 114758, 121998, 142331, 147546, 172137, 182997, 284662, 344274, 365994, 426993, 516411, 853986, 996317, 1032822, 1280979, 1992634, 2561958, 2988951, 5977902, 8966853, 17933706, 23809943, 47619886, 71429829, 142859658, 166669601, 214289487, 333339202, 428578974, 500008803, 1000017606, 1166687207, 1500026409, 2333374414, 3000052818, 3500061621, 7000123242, 10500184863, 21000369726]

約数ペア:

[(1, 21000369726), (2, 10500184863), (3, 7000123242), (6, 3500061621), (7, 3000052818), (9, 2333374414), (14, 1500026409), (18, 1166687207), (21, 1000017606), (42, 500008803), (49, 428578974), (63, 333339202), (98, 214289487), (126, 166669601), (147, 142859658), (294, 71429829), (441, 47619886), (882, 23809943), (1171, 17933706), (2342, 8966853), (3513, 5977902), (7026, 2988951), (8197, 2561958), (10539, 1992634), (16394, 1280979), (20333, 1032822), (21078, 996317), (24591, 853986), (40666, 516411), (49182, 426993), (57379, 365994), (60999, 344274), (73773, 284662), (114758, 182997), (121998, 172137), (142331, 147546)]