21705552

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 67549248

約数和(自身を除く): 45843696

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 71, 72, 88, 99, 132, 142, 144, 176, 193, 198, 213, 264, 284, 386, 396, 426, 528, 568, 579, 639, 772, 781, 792, 852, 1136, 1158, 1278, 1544, 1562, 1584, 1704, 1737, 2123, 2316, 2343, 2556, 3088, 3124, 3408, 3474, 4246, 4632, 4686, 5112, 6248, 6369, 6948, 7029, 8492, 9264, 9372, 10224, 12496, 12738, 13703, 13896, 14058, 16984, 18744, 19107, 25476, 27406, 27792, 28116, 33968, 37488, 38214, 41109, 50952, 54812, 56232, 76428, 82218, 101904, 109624, 112464, 123327, 150733, 152856, 164436, 219248, 246654, 301466, 305712, 328872, 452199, 493308, 602932, 657744, 904398, 986616, 1205864, 1356597, 1808796, 1973232, 2411728, 2713194, 3617592, 5426388, 7235184, 10852776, 21705552]

約数ペア:

[(1, 21705552), (2, 10852776), (3, 7235184), (4, 5426388), (6, 3617592), (8, 2713194), (9, 2411728), (11, 1973232), (12, 1808796), (16, 1356597), (18, 1205864), (22, 986616), (24, 904398), (33, 657744), (36, 602932), (44, 493308), (48, 452199), (66, 328872), (71, 305712), (72, 301466), (88, 246654), (99, 219248), (132, 164436), (142, 152856), (144, 150733), (176, 123327), (193, 112464), (198, 109624), (213, 101904), (264, 82218), (284, 76428), (386, 56232), (396, 54812), (426, 50952), (528, 41109), (568, 38214), (579, 37488), (639, 33968), (772, 28116), (781, 27792), (792, 27406), (852, 25476), (1136, 19107), (1158, 18744), (1278, 16984), (1544, 14058), (1562, 13896), (1584, 13703), (1704, 12738), (1737, 12496), (2123, 10224), (2316, 9372), (2343, 9264), (2556, 8492), (3088, 7029), (3124, 6948), (3408, 6369), (3474, 6248), (4246, 5112), (4632, 4686)]