21211392

素因数分解:

$2^8\times 3^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 57395520

約数和(自身を除く): 36184128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 128, 142, 192, 213, 256, 284, 384, 389, 426, 568, 768, 778, 852, 1136, 1167, 1556, 1704, 2272, 2334, 3112, 3408, 4544, 4668, 6224, 6816, 9088, 9336, 12448, 13632, 18176, 18672, 24896, 27264, 27619, 37344, 49792, 54528, 55238, 74688, 82857, 99584, 110476, 149376, 165714, 220952, 298752, 331428, 441904, 662856, 883808, 1325712, 1767616, 2651424, 3535232, 5302848, 7070464, 10605696, 21211392]

約数ペア:

[(1, 21211392), (2, 10605696), (3, 7070464), (4, 5302848), (6, 3535232), (8, 2651424), (12, 1767616), (16, 1325712), (24, 883808), (32, 662856), (48, 441904), (64, 331428), (71, 298752), (96, 220952), (128, 165714), (142, 149376), (192, 110476), (213, 99584), (256, 82857), (284, 74688), (384, 55238), (389, 54528), (426, 49792), (568, 37344), (768, 27619), (778, 27264), (852, 24896), (1136, 18672), (1167, 18176), (1556, 13632), (1704, 12448), (2272, 9336), (2334, 9088), (3112, 6816), (3408, 6224), (4544, 4668)]