21000978816

素因数分解:

$2^7\times 3^1\times {\mathrm{179}}^1\times {\mathrm{277}}^1\times {\mathrm{1103}}^1$

素因数の和:1576

約数の個数: 128

約数和(自身を含む): 56349043200

約数和(自身を除く): 35348064384

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 179, 192, 277, 358, 384, 537, 554, 716, 831, 1074, 1103, 1108, 1432, 1662, 2148, 2206, 2216, 2864, 3309, 3324, 4296, 4412, 4432, 5728, 6618, 6648, 8592, 8824, 8864, 11456, 13236, 13296, 17184, 17648, 17728, 22912, 26472, 26592, 34368, 35296, 35456, 49583, 52944, 53184, 68736, 70592, 99166, 105888, 106368, 141184, 148749, 197437, 198332, 211776, 297498, 305531, 394874, 396664, 423552, 592311, 594996, 611062, 789748, 793328, 916593, 1184622, 1189992, 1222124, 1579496, 1586656, 1833186, 2369244, 2379984, 2444248, 3158992, 3173312, 3666372, 4738488, 4759968, 4888496, 6317984, 6346624, 7332744, 9476976, 9519936, 9776992, 12635968, 14665488, 18953952, 19039872, 19553984, 25271936, 29330976, 37907904, 39107968, 54690049, 58661952, 75815808, 109380098, 117323904, 164070147, 218760196, 328140294, 437520392, 656280588, 875040784, 1312561176, 1750081568, 2625122352, 3500163136, 5250244704, 7000326272, 10500489408, 21000978816]

約数ペア:

[(1, 21000978816), (2, 10500489408), (3, 7000326272), (4, 5250244704), (6, 3500163136), (8, 2625122352), (12, 1750081568), (16, 1312561176), (24, 875040784), (32, 656280588), (48, 437520392), (64, 328140294), (96, 218760196), (128, 164070147), (179, 117323904), (192, 109380098), (277, 75815808), (358, 58661952), (384, 54690049), (537, 39107968), (554, 37907904), (716, 29330976), (831, 25271936), (1074, 19553984), (1103, 19039872), (1108, 18953952), (1432, 14665488), (1662, 12635968), (2148, 9776992), (2206, 9519936), (2216, 9476976), (2864, 7332744), (3309, 6346624), (3324, 6317984), (4296, 4888496), (4412, 4759968), (4432, 4738488), (5728, 3666372), (6618, 3173312), (6648, 3158992), (8592, 2444248), (8824, 2379984), (8864, 2369244), (11456, 1833186), (13236, 1586656), (13296, 1579496), (17184, 1222124), (17648, 1189992), (17728, 1184622), (22912, 916593), (26472, 793328), (26592, 789748), (34368, 611062), (35296, 594996), (35456, 592311), (49583, 423552), (52944, 396664), (53184, 394874), (68736, 305531), (70592, 297498), (99166, 211776), (105888, 198332), (106368, 197437), (141184, 148749)]