21378384

素因数分解:

$2^4\times 3^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 160

約数和(自身を含む): 67495680

約数和(自身を除く): 46117296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 41, 48, 51, 54, 68, 71, 72, 82, 102, 108, 123, 136, 142, 144, 153, 164, 204, 213, 216, 246, 272, 284, 306, 328, 369, 408, 426, 432, 459, 492, 568, 612, 639, 656, 697, 738, 816, 852, 918, 984, 1107, 1136, 1207, 1224, 1278, 1394, 1476, 1704, 1836, 1917, 1968, 2091, 2214, 2414, 2448, 2556, 2788, 2911, 2952, 3408, 3621, 3672, 3834, 4182, 4428, 4828, 5112, 5576, 5822, 5904, 6273, 7242, 7344, 7668, 8364, 8733, 8856, 9656, 10224, 10863, 11152, 11644, 12546, 14484, 15336, 16728, 17466, 17712, 18819, 19312, 21726, 23288, 25092, 26199, 28968, 30672, 32589, 33456, 34932, 37638, 43452, 46576, 49487, 50184, 52398, 57936, 65178, 69864, 75276, 78597, 86904, 98974, 100368, 104796, 130356, 139728, 148461, 150552, 157194, 173808, 197948, 209592, 260712, 296922, 301104, 314388, 395896, 419184, 445383, 521424, 593844, 628776, 791792, 890766, 1187688, 1257552, 1336149, 1781532, 2375376, 2672298, 3563064, 5344596, 7126128, 10689192, 21378384]

約数ペア:

[(1, 21378384), (2, 10689192), (3, 7126128), (4, 5344596), (6, 3563064), (8, 2672298), (9, 2375376), (12, 1781532), (16, 1336149), (17, 1257552), (18, 1187688), (24, 890766), (27, 791792), (34, 628776), (36, 593844), (41, 521424), (48, 445383), (51, 419184), (54, 395896), (68, 314388), (71, 301104), (72, 296922), (82, 260712), (102, 209592), (108, 197948), (123, 173808), (136, 157194), (142, 150552), (144, 148461), (153, 139728), (164, 130356), (204, 104796), (213, 100368), (216, 98974), (246, 86904), (272, 78597), (284, 75276), (306, 69864), (328, 65178), (369, 57936), (408, 52398), (426, 50184), (432, 49487), (459, 46576), (492, 43452), (568, 37638), (612, 34932), (639, 33456), (656, 32589), (697, 30672), (738, 28968), (816, 26199), (852, 25092), (918, 23288), (984, 21726), (1107, 19312), (1136, 18819), (1207, 17712), (1224, 17466), (1278, 16728), (1394, 15336), (1476, 14484), (1704, 12546), (1836, 11644), (1917, 11152), (1968, 10863), (2091, 10224), (2214, 9656), (2414, 8856), (2448, 8733), (2556, 8364), (2788, 7668), (2911, 7344), (2952, 7242), (3408, 6273), (3621, 5904), (3672, 5822), (3834, 5576), (4182, 5112), (4428, 4828)]