21093888

素因数分解:

$2^9\times 3^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 58139136

約数和(自身を除く): 37045248

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, 443, 496, 512, 744, 768, 886, 992, 1329, 1488, 1536, 1772, 1984, 2658, 2976, 3544, 3968, 5316, 5952, 7088, 7936, 10632, 11904, 13733, 14176, 15872, 21264, 23808, 27466, 28352, 41199, 42528, 47616, 54932, 56704, 82398, 85056, 109864, 113408, 164796, 170112, 219728, 226816, 329592, 340224, 439456, 659184, 680448, 878912, 1318368, 1757824, 2636736, 3515648, 5273472, 7031296, 10546944, 21093888]

約数ペア:

[(1, 21093888), (2, 10546944), (3, 7031296), (4, 5273472), (6, 3515648), (8, 2636736), (12, 1757824), (16, 1318368), (24, 878912), (31, 680448), (32, 659184), (48, 439456), (62, 340224), (64, 329592), (93, 226816), (96, 219728), (124, 170112), (128, 164796), (186, 113408), (192, 109864), (248, 85056), (256, 82398), (372, 56704), (384, 54932), (443, 47616), (496, 42528), (512, 41199), (744, 28352), (768, 27466), (886, 23808), (992, 21264), (1329, 15872), (1488, 14176), (1536, 13733), (1772, 11904), (1984, 10632), (2658, 7936), (2976, 7088), (3544, 5952), (3968, 5316)]