21175280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37813}}^1$

素因数の和:37833

約数の個数: 40

約数和(自身を含む): 56267232

約数和(自身を除く): 35091952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37813, 75626, 151252, 189065, 264691, 302504, 378130, 529382, 605008, 756260, 1058764, 1323455, 1512520, 2117528, 2646910, 3025040, 4235056, 5293820, 10587640, 21175280]

約数ペア:

[(1, 21175280), (2, 10587640), (4, 5293820), (5, 4235056), (7, 3025040), (8, 2646910), (10, 2117528), (14, 1512520), (16, 1323455), (20, 1058764), (28, 756260), (35, 605008), (40, 529382), (56, 378130), (70, 302504), (80, 264691), (112, 189065), (140, 151252), (280, 75626), (560, 37813)]