21037824

素因数分解:

$2^8\times 3^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 108

約数和(自身を含む): 63453936

約数和(自身を除く): 42416112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 64, 69, 72, 92, 96, 128, 138, 144, 184, 192, 207, 256, 276, 288, 368, 384, 397, 414, 552, 576, 736, 768, 794, 828, 1104, 1152, 1191, 1472, 1588, 1656, 2208, 2304, 2382, 2944, 3176, 3312, 3573, 4416, 4764, 5888, 6352, 6624, 7146, 8832, 9131, 9528, 12704, 13248, 14292, 17664, 18262, 19056, 25408, 26496, 27393, 28584, 36524, 38112, 50816, 52992, 54786, 57168, 73048, 76224, 82179, 101632, 109572, 114336, 146096, 152448, 164358, 219144, 228672, 292192, 304896, 328716, 438288, 457344, 584384, 657432, 876576, 914688, 1168768, 1314864, 1753152, 2337536, 2629728, 3506304, 5259456, 7012608, 10518912, 21037824]

約数ペア:

[(1, 21037824), (2, 10518912), (3, 7012608), (4, 5259456), (6, 3506304), (8, 2629728), (9, 2337536), (12, 1753152), (16, 1314864), (18, 1168768), (23, 914688), (24, 876576), (32, 657432), (36, 584384), (46, 457344), (48, 438288), (64, 328716), (69, 304896), (72, 292192), (92, 228672), (96, 219144), (128, 164358), (138, 152448), (144, 146096), (184, 114336), (192, 109572), (207, 101632), (256, 82179), (276, 76224), (288, 73048), (368, 57168), (384, 54786), (397, 52992), (414, 50816), (552, 38112), (576, 36524), (736, 28584), (768, 27393), (794, 26496), (828, 25408), (1104, 19056), (1152, 18262), (1191, 17664), (1472, 14292), (1588, 13248), (1656, 12704), (2208, 9528), (2304, 9131), (2382, 8832), (2944, 7146), (3176, 6624), (3312, 6352), (3573, 5888), (4416, 4764)]