21117696

素因数分解:

$2^8\times 3^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 58082304

約数和(自身を除く): 36964608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 256, 372, 384, 496, 744, 768, 887, 992, 1488, 1774, 1984, 2661, 2976, 3548, 3968, 5322, 5952, 7096, 7936, 10644, 11904, 14192, 21288, 23808, 27497, 28384, 42576, 54994, 56768, 82491, 85152, 109988, 113536, 164982, 170304, 219976, 227072, 329964, 340608, 439952, 659928, 681216, 879904, 1319856, 1759808, 2639712, 3519616, 5279424, 7039232, 10558848, 21117696]

約数ペア:

[(1, 21117696), (2, 10558848), (3, 7039232), (4, 5279424), (6, 3519616), (8, 2639712), (12, 1759808), (16, 1319856), (24, 879904), (31, 681216), (32, 659928), (48, 439952), (62, 340608), (64, 329964), (93, 227072), (96, 219976), (124, 170304), (128, 164982), (186, 113536), (192, 109988), (248, 85152), (256, 82491), (372, 56768), (384, 54994), (496, 42576), (744, 28384), (768, 27497), (887, 23808), (992, 21288), (1488, 14192), (1774, 11904), (1984, 10644), (2661, 7936), (2976, 7096), (3548, 5952), (3968, 5322)]