21307392

素因数分解:

$2^{13}\times 3^2\times {\mathrm{17}}^2$

素因数の和:66

約数の個数: 126

約数和(自身を含む): 65384553

約数和(自身を除く): 44077161

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 64, 68, 72, 96, 102, 128, 136, 144, 153, 192, 204, 256, 272, 288, 289, 306, 384, 408, 512, 544, 576, 578, 612, 768, 816, 867, 1024, 1088, 1152, 1156, 1224, 1536, 1632, 1734, 2048, 2176, 2304, 2312, 2448, 2601, 3072, 3264, 3468, 4096, 4352, 4608, 4624, 4896, 5202, 6144, 6528, 6936, 8192, 8704, 9216, 9248, 9792, 10404, 12288, 13056, 13872, 17408, 18432, 18496, 19584, 20808, 24576, 26112, 27744, 34816, 36864, 36992, 39168, 41616, 52224, 55488, 69632, 73728, 73984, 78336, 83232, 104448, 110976, 139264, 147968, 156672, 166464, 208896, 221952, 295936, 313344, 332928, 417792, 443904, 591872, 626688, 665856, 887808, 1183744, 1253376, 1331712, 1775616, 2367488, 2663424, 3551232, 5326848, 7102464, 10653696, 21307392]

約数ペア:

[(1, 21307392), (2, 10653696), (3, 7102464), (4, 5326848), (6, 3551232), (8, 2663424), (9, 2367488), (12, 1775616), (16, 1331712), (17, 1253376), (18, 1183744), (24, 887808), (32, 665856), (34, 626688), (36, 591872), (48, 443904), (51, 417792), (64, 332928), (68, 313344), (72, 295936), (96, 221952), (102, 208896), (128, 166464), (136, 156672), (144, 147968), (153, 139264), (192, 110976), (204, 104448), (256, 83232), (272, 78336), (288, 73984), (289, 73728), (306, 69632), (384, 55488), (408, 52224), (512, 41616), (544, 39168), (576, 36992), (578, 36864), (612, 34816), (768, 27744), (816, 26112), (867, 24576), (1024, 20808), (1088, 19584), (1152, 18496), (1156, 18432), (1224, 17408), (1536, 13872), (1632, 13056), (1734, 12288), (2048, 10404), (2176, 9792), (2304, 9248), (2312, 9216), (2448, 8704), (2601, 8192), (3072, 6936), (3264, 6528), (3468, 6144), (4096, 5202), (4352, 4896), (4608, 4624)]