21279552

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:316

約数の個数: 112

約数和(自身を含む): 65544192

約数和(自身を除く): 44264640

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 71, 84, 96, 112, 142, 168, 192, 213, 223, 224, 284, 336, 426, 446, 448, 497, 568, 669, 672, 852, 892, 994, 1136, 1338, 1344, 1491, 1561, 1704, 1784, 1988, 2272, 2676, 2982, 3122, 3408, 3568, 3976, 4544, 4683, 5352, 5964, 6244, 6816, 7136, 7952, 9366, 10704, 11928, 12488, 13632, 14272, 15833, 15904, 18732, 21408, 23856, 24976, 31666, 31808, 37464, 42816, 47499, 47712, 49952, 63332, 74928, 94998, 95424, 99904, 110831, 126664, 149856, 189996, 221662, 253328, 299712, 332493, 379992, 443324, 506656, 664986, 759984, 886648, 1013312, 1329972, 1519968, 1773296, 2659944, 3039936, 3546592, 5319888, 7093184, 10639776, 21279552]

約数ペア:

[(1, 21279552), (2, 10639776), (3, 7093184), (4, 5319888), (6, 3546592), (7, 3039936), (8, 2659944), (12, 1773296), (14, 1519968), (16, 1329972), (21, 1013312), (24, 886648), (28, 759984), (32, 664986), (42, 506656), (48, 443324), (56, 379992), (64, 332493), (71, 299712), (84, 253328), (96, 221662), (112, 189996), (142, 149856), (168, 126664), (192, 110831), (213, 99904), (223, 95424), (224, 94998), (284, 74928), (336, 63332), (426, 49952), (446, 47712), (448, 47499), (497, 42816), (568, 37464), (669, 31808), (672, 31666), (852, 24976), (892, 23856), (994, 21408), (1136, 18732), (1338, 15904), (1344, 15833), (1491, 14272), (1561, 13632), (1704, 12488), (1784, 11928), (1988, 10704), (2272, 9366), (2676, 7952), (2982, 7136), (3122, 6816), (3408, 6244), (3568, 5964), (3976, 5352), (4544, 4683)]