21043792

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:105

約数の個数: 160

約数和(自身を含む): 57139200

約数和(自身を除く): 36095408

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 29, 31, 38, 44, 56, 58, 62, 76, 77, 88, 112, 116, 124, 133, 152, 154, 176, 203, 209, 217, 232, 248, 266, 304, 308, 319, 341, 406, 418, 434, 464, 496, 532, 551, 589, 616, 638, 682, 812, 836, 868, 899, 1064, 1102, 1178, 1232, 1276, 1364, 1463, 1624, 1672, 1736, 1798, 2128, 2204, 2233, 2356, 2387, 2552, 2728, 2926, 3248, 3344, 3472, 3596, 3857, 4123, 4408, 4466, 4712, 4774, 5104, 5456, 5852, 6061, 6293, 6479, 7192, 7714, 8246, 8816, 8932, 9424, 9548, 9889, 11704, 12122, 12586, 12958, 14384, 15428, 16492, 17081, 17864, 19096, 19778, 23408, 24244, 25172, 25916, 30856, 32984, 34162, 35728, 38192, 39556, 42427, 45353, 48488, 50344, 51832, 61712, 65968, 68324, 69223, 79112, 84854, 90706, 96976, 100688, 103664, 119567, 136648, 138446, 158224, 169708, 181412, 187891, 239134, 273296, 276892, 339416, 362824, 375782, 478268, 553784, 678832, 725648, 751564, 956536, 1107568, 1315237, 1503128, 1913072, 2630474, 3006256, 5260948, 10521896, 21043792]

約数ペア:

[(1, 21043792), (2, 10521896), (4, 5260948), (7, 3006256), (8, 2630474), (11, 1913072), (14, 1503128), (16, 1315237), (19, 1107568), (22, 956536), (28, 751564), (29, 725648), (31, 678832), (38, 553784), (44, 478268), (56, 375782), (58, 362824), (62, 339416), (76, 276892), (77, 273296), (88, 239134), (112, 187891), (116, 181412), (124, 169708), (133, 158224), (152, 138446), (154, 136648), (176, 119567), (203, 103664), (209, 100688), (217, 96976), (232, 90706), (248, 84854), (266, 79112), (304, 69223), (308, 68324), (319, 65968), (341, 61712), (406, 51832), (418, 50344), (434, 48488), (464, 45353), (496, 42427), (532, 39556), (551, 38192), (589, 35728), (616, 34162), (638, 32984), (682, 30856), (812, 25916), (836, 25172), (868, 24244), (899, 23408), (1064, 19778), (1102, 19096), (1178, 17864), (1232, 17081), (1276, 16492), (1364, 15428), (1463, 14384), (1624, 12958), (1672, 12586), (1736, 12122), (1798, 11704), (2128, 9889), (2204, 9548), (2233, 9424), (2356, 8932), (2387, 8816), (2552, 8246), (2728, 7714), (2926, 7192), (3248, 6479), (3344, 6293), (3472, 6061), (3596, 5852), (3857, 5456), (4123, 5104), (4408, 4774), (4466, 4712)]