21199808

素因数分解:

$2^6\times 7^1\times {\mathrm{79}}^1\times {\mathrm{599}}^1$

素因数の和:697

約数の個数: 56

約数和(自身を含む): 48768000

約数和(自身を除く): 27568192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 79, 112, 158, 224, 316, 448, 553, 599, 632, 1106, 1198, 1264, 2212, 2396, 2528, 4193, 4424, 4792, 5056, 8386, 8848, 9584, 16772, 17696, 19168, 33544, 35392, 38336, 47321, 67088, 94642, 134176, 189284, 268352, 331247, 378568, 662494, 757136, 1324988, 1514272, 2649976, 3028544, 5299952, 10599904, 21199808]

約数ペア:

[(1, 21199808), (2, 10599904), (4, 5299952), (7, 3028544), (8, 2649976), (14, 1514272), (16, 1324988), (28, 757136), (32, 662494), (56, 378568), (64, 331247), (79, 268352), (112, 189284), (158, 134176), (224, 94642), (316, 67088), (448, 47321), (553, 38336), (599, 35392), (632, 33544), (1106, 19168), (1198, 17696), (1264, 16772), (2212, 9584), (2396, 8848), (2528, 8386), (4193, 5056), (4424, 4792)]