21031584

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 144

約数和(自身を含む): 68257728

約数和(自身を除く): 47226144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 49, 51, 56, 68, 84, 96, 98, 102, 112, 119, 136, 147, 168, 196, 204, 224, 238, 263, 272, 294, 336, 357, 392, 408, 476, 526, 544, 588, 672, 714, 784, 789, 816, 833, 952, 1052, 1176, 1428, 1568, 1578, 1632, 1666, 1841, 1904, 2104, 2352, 2499, 2856, 3156, 3332, 3682, 3808, 4208, 4471, 4704, 4998, 5523, 5712, 6312, 6664, 7364, 8416, 8942, 9996, 11046, 11424, 12624, 12887, 13328, 13413, 14728, 17884, 19992, 22092, 25248, 25774, 26656, 26826, 29456, 31297, 35768, 38661, 39984, 44184, 51548, 53652, 58912, 62594, 71536, 77322, 79968, 88368, 93891, 103096, 107304, 125188, 143072, 154644, 176736, 187782, 206192, 214608, 219079, 250376, 309288, 375564, 412384, 429216, 438158, 500752, 618576, 657237, 751128, 876316, 1001504, 1237152, 1314474, 1502256, 1752632, 2628948, 3004512, 3505264, 5257896, 7010528, 10515792, 21031584]

約数ペア:

[(1, 21031584), (2, 10515792), (3, 7010528), (4, 5257896), (6, 3505264), (7, 3004512), (8, 2628948), (12, 1752632), (14, 1502256), (16, 1314474), (17, 1237152), (21, 1001504), (24, 876316), (28, 751128), (32, 657237), (34, 618576), (42, 500752), (48, 438158), (49, 429216), (51, 412384), (56, 375564), (68, 309288), (84, 250376), (96, 219079), (98, 214608), (102, 206192), (112, 187782), (119, 176736), (136, 154644), (147, 143072), (168, 125188), (196, 107304), (204, 103096), (224, 93891), (238, 88368), (263, 79968), (272, 77322), (294, 71536), (336, 62594), (357, 58912), (392, 53652), (408, 51548), (476, 44184), (526, 39984), (544, 38661), (588, 35768), (672, 31297), (714, 29456), (784, 26826), (789, 26656), (816, 25774), (833, 25248), (952, 22092), (1052, 19992), (1176, 17884), (1428, 14728), (1568, 13413), (1578, 13328), (1632, 12887), (1666, 12624), (1841, 11424), (1904, 11046), (2104, 9996), (2352, 8942), (2499, 8416), (2856, 7364), (3156, 6664), (3332, 6312), (3682, 5712), (3808, 5523), (4208, 4998), (4471, 4704)]