21056832

素因数分解:

$2^6\times 3^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:420

約数の個数: 84

約数和(自身を含む): 61020960

約数和(自身を除く): 39964128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 139, 144, 192, 263, 278, 288, 417, 526, 556, 576, 789, 834, 1052, 1112, 1251, 1578, 1668, 2104, 2224, 2367, 2502, 3156, 3336, 4208, 4448, 4734, 5004, 6312, 6672, 8416, 8896, 9468, 10008, 12624, 13344, 16832, 18936, 20016, 25248, 26688, 36557, 37872, 40032, 50496, 73114, 75744, 80064, 109671, 146228, 151488, 219342, 292456, 329013, 438684, 584912, 658026, 877368, 1169824, 1316052, 1754736, 2339648, 2632104, 3509472, 5264208, 7018944, 10528416, 21056832]

約数ペア:

[(1, 21056832), (2, 10528416), (3, 7018944), (4, 5264208), (6, 3509472), (8, 2632104), (9, 2339648), (12, 1754736), (16, 1316052), (18, 1169824), (24, 877368), (32, 658026), (36, 584912), (48, 438684), (64, 329013), (72, 292456), (96, 219342), (139, 151488), (144, 146228), (192, 109671), (263, 80064), (278, 75744), (288, 73114), (417, 50496), (526, 40032), (556, 37872), (576, 36557), (789, 26688), (834, 25248), (1052, 20016), (1112, 18936), (1251, 16832), (1578, 13344), (1668, 12624), (2104, 10008), (2224, 9468), (2367, 8896), (2502, 8416), (3156, 6672), (3336, 6312), (4208, 5004), (4448, 4734)]