21037520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37567}}^1$

素因数の和:37587

約数の個数: 40

約数和(自身を含む): 55901184

約数和(自身を除く): 34863664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37567, 75134, 150268, 187835, 262969, 300536, 375670, 525938, 601072, 751340, 1051876, 1314845, 1502680, 2103752, 2629690, 3005360, 4207504, 5259380, 10518760, 21037520]

約数ペア:

[(1, 21037520), (2, 10518760), (4, 5259380), (5, 4207504), (7, 3005360), (8, 2629690), (10, 2103752), (14, 1502680), (16, 1314845), (20, 1051876), (28, 751340), (35, 601072), (40, 525938), (56, 375670), (70, 300536), (80, 262969), (112, 187835), (140, 150268), (280, 75134), (560, 37567)]