20621664

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:269

約数の個数: 144

約数和(自身を含む): 68638752

約数和(自身を除く): 48017088

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 53, 56, 63, 72, 84, 96, 106, 112, 126, 144, 159, 168, 193, 212, 224, 252, 288, 318, 336, 371, 386, 424, 477, 504, 579, 636, 672, 742, 772, 848, 954, 1008, 1113, 1158, 1272, 1351, 1484, 1544, 1696, 1737, 1908, 2016, 2226, 2316, 2544, 2702, 2968, 3088, 3339, 3474, 3816, 4053, 4452, 4632, 5088, 5404, 5936, 6176, 6678, 6948, 7632, 8106, 8904, 9264, 10229, 10808, 11872, 12159, 13356, 13896, 15264, 16212, 17808, 18528, 20458, 21616, 24318, 26712, 27792, 30687, 32424, 35616, 40916, 43232, 48636, 53424, 55584, 61374, 64848, 71603, 81832, 92061, 97272, 106848, 122748, 129696, 143206, 163664, 184122, 194544, 214809, 245496, 286412, 327328, 368244, 389088, 429618, 490992, 572824, 644427, 736488, 859236, 981984, 1145648, 1288854, 1472976, 1718472, 2291296, 2577708, 2945952, 3436944, 5155416, 6873888, 10310832, 20621664]

約数ペア:

[(1, 20621664), (2, 10310832), (3, 6873888), (4, 5155416), (6, 3436944), (7, 2945952), (8, 2577708), (9, 2291296), (12, 1718472), (14, 1472976), (16, 1288854), (18, 1145648), (21, 981984), (24, 859236), (28, 736488), (32, 644427), (36, 572824), (42, 490992), (48, 429618), (53, 389088), (56, 368244), (63, 327328), (72, 286412), (84, 245496), (96, 214809), (106, 194544), (112, 184122), (126, 163664), (144, 143206), (159, 129696), (168, 122748), (193, 106848), (212, 97272), (224, 92061), (252, 81832), (288, 71603), (318, 64848), (336, 61374), (371, 55584), (386, 53424), (424, 48636), (477, 43232), (504, 40916), (579, 35616), (636, 32424), (672, 30687), (742, 27792), (772, 26712), (848, 24318), (954, 21616), (1008, 20458), (1113, 18528), (1158, 17808), (1272, 16212), (1351, 15264), (1484, 13896), (1544, 13356), (1696, 12159), (1737, 11872), (1908, 10808), (2016, 10229), (2226, 9264), (2316, 8904), (2544, 8106), (2702, 7632), (2968, 6948), (3088, 6678), (3339, 6176), (3474, 5936), (3816, 5404), (4053, 5088), (4452, 4632)]