21161976

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1129}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 58579200

約数和(自身を除く): 37417224

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 71, 88, 132, 142, 213, 264, 284, 426, 568, 781, 852, 1129, 1562, 1704, 2258, 2343, 3124, 3387, 4516, 4686, 6248, 6774, 9032, 9372, 12419, 13548, 18744, 24838, 27096, 37257, 49676, 74514, 80159, 99352, 149028, 160318, 240477, 298056, 320636, 480954, 641272, 881749, 961908, 1763498, 1923816, 2645247, 3526996, 5290494, 7053992, 10580988, 21161976]

約数ペア:

[(1, 21161976), (2, 10580988), (3, 7053992), (4, 5290494), (6, 3526996), (8, 2645247), (11, 1923816), (12, 1763498), (22, 961908), (24, 881749), (33, 641272), (44, 480954), (66, 320636), (71, 298056), (88, 240477), (132, 160318), (142, 149028), (213, 99352), (264, 80159), (284, 74514), (426, 49676), (568, 37257), (781, 27096), (852, 24838), (1129, 18744), (1562, 13548), (1704, 12419), (2258, 9372), (2343, 9032), (3124, 6774), (3387, 6248), (4516, 4686)]