21197568

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{3943}}^1$

素因数の和:3969

約数の個数: 72

約数和(自身を含む): 64492288

約数和(自身を除く): 43294720

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 672, 768, 896, 1344, 1792, 2688, 3943, 5376, 7886, 11829, 15772, 23658, 27601, 31544, 47316, 55202, 63088, 82803, 94632, 110404, 126176, 165606, 189264, 220808, 252352, 331212, 378528, 441616, 504704, 662424, 757056, 883232, 1009408, 1324848, 1514112, 1766464, 2649696, 3028224, 3532928, 5299392, 7065856, 10598784, 21197568]

約数ペア:

[(1, 21197568), (2, 10598784), (3, 7065856), (4, 5299392), (6, 3532928), (7, 3028224), (8, 2649696), (12, 1766464), (14, 1514112), (16, 1324848), (21, 1009408), (24, 883232), (28, 757056), (32, 662424), (42, 504704), (48, 441616), (56, 378528), (64, 331212), (84, 252352), (96, 220808), (112, 189264), (128, 165606), (168, 126176), (192, 110404), (224, 94632), (256, 82803), (336, 63088), (384, 55202), (448, 47316), (672, 31544), (768, 27601), (896, 23658), (1344, 15772), (1792, 11829), (2688, 7886), (3943, 5376)]