21209472

素因数分解:

$2^7\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:78

約数の個数: 192

約数和(自身を含む): 69951600

約数和(自身を除く): 48742128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 19, 24, 27, 32, 34, 36, 38, 48, 51, 54, 57, 64, 68, 72, 76, 96, 102, 108, 114, 128, 136, 144, 152, 153, 171, 192, 204, 216, 228, 272, 288, 304, 306, 323, 342, 361, 384, 408, 432, 456, 459, 513, 544, 576, 608, 612, 646, 684, 722, 816, 864, 912, 918, 969, 1026, 1083, 1088, 1152, 1216, 1224, 1292, 1368, 1444, 1632, 1728, 1824, 1836, 1938, 2052, 2166, 2176, 2432, 2448, 2584, 2736, 2888, 2907, 3249, 3264, 3456, 3648, 3672, 3876, 4104, 4332, 4896, 5168, 5472, 5776, 5814, 6137, 6498, 6528, 7296, 7344, 7752, 8208, 8664, 8721, 9747, 9792, 10336, 10944, 11552, 11628, 12274, 12996, 14688, 15504, 16416, 17328, 17442, 18411, 19494, 19584, 20672, 21888, 23104, 23256, 24548, 25992, 29376, 31008, 32832, 34656, 34884, 36822, 38988, 41344, 46208, 46512, 49096, 51984, 55233, 58752, 62016, 65664, 69312, 69768, 73644, 77976, 93024, 98192, 103968, 110466, 124032, 138624, 139536, 147288, 155952, 165699, 186048, 196384, 207936, 220932, 279072, 294576, 311904, 331398, 372096, 392768, 415872, 441864, 558144, 589152, 623808, 662796, 785536, 883728, 1116288, 1178304, 1247616, 1325592, 1767456, 2356608, 2651184, 3534912, 5302368, 7069824, 10604736, 21209472]

約数ペア:

[(1, 21209472), (2, 10604736), (3, 7069824), (4, 5302368), (6, 3534912), (8, 2651184), (9, 2356608), (12, 1767456), (16, 1325592), (17, 1247616), (18, 1178304), (19, 1116288), (24, 883728), (27, 785536), (32, 662796), (34, 623808), (36, 589152), (38, 558144), (48, 441864), (51, 415872), (54, 392768), (57, 372096), (64, 331398), (68, 311904), (72, 294576), (76, 279072), (96, 220932), (102, 207936), (108, 196384), (114, 186048), (128, 165699), (136, 155952), (144, 147288), (152, 139536), (153, 138624), (171, 124032), (192, 110466), (204, 103968), (216, 98192), (228, 93024), (272, 77976), (288, 73644), (304, 69768), (306, 69312), (323, 65664), (342, 62016), (361, 58752), (384, 55233), (408, 51984), (432, 49096), (456, 46512), (459, 46208), (513, 41344), (544, 38988), (576, 36822), (608, 34884), (612, 34656), (646, 32832), (684, 31008), (722, 29376), (816, 25992), (864, 24548), (912, 23256), (918, 23104), (969, 21888), (1026, 20672), (1083, 19584), (1088, 19494), (1152, 18411), (1216, 17442), (1224, 17328), (1292, 16416), (1368, 15504), (1444, 14688), (1632, 12996), (1728, 12274), (1824, 11628), (1836, 11552), (1938, 10944), (2052, 10336), (2166, 9792), (2176, 9747), (2432, 8721), (2448, 8664), (2584, 8208), (2736, 7752), (2888, 7344), (2907, 7296), (3249, 6528), (3264, 6498), (3456, 6137), (3648, 5814), (3672, 5776), (3876, 5472), (4104, 5168), (4332, 4896)]