21009408

素因数分解:

$2^{10}\times 3^1\times 7^1\times {\mathrm{977}}^1$

素因数の和:1007

約数の個数: 88

約数和(自身を含む): 64062912

約数和(自身を除く): 43053504

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, 512, 672, 768, 896, 977, 1024, 1344, 1536, 1792, 1954, 2688, 2931, 3072, 3584, 3908, 5376, 5862, 6839, 7168, 7816, 10752, 11724, 13678, 15632, 20517, 21504, 23448, 27356, 31264, 41034, 46896, 54712, 62528, 82068, 93792, 109424, 125056, 164136, 187584, 218848, 250112, 328272, 375168, 437696, 500224, 656544, 750336, 875392, 1000448, 1313088, 1500672, 1750784, 2626176, 3001344, 3501568, 5252352, 7003136, 10504704, 21009408]

約数ペア:

[(1, 21009408), (2, 10504704), (3, 7003136), (4, 5252352), (6, 3501568), (7, 3001344), (8, 2626176), (12, 1750784), (14, 1500672), (16, 1313088), (21, 1000448), (24, 875392), (28, 750336), (32, 656544), (42, 500224), (48, 437696), (56, 375168), (64, 328272), (84, 250112), (96, 218848), (112, 187584), (128, 164136), (168, 125056), (192, 109424), (224, 93792), (256, 82068), (336, 62528), (384, 54712), (448, 46896), (512, 41034), (672, 31264), (768, 27356), (896, 23448), (977, 21504), (1024, 20517), (1344, 15632), (1536, 13678), (1792, 11724), (1954, 10752), (2688, 7816), (2931, 7168), (3072, 6839), (3584, 5862), (3908, 5376)]