21870856

素因数分解:

$2^3\times 7^2\times {\mathrm{55793}}^1$

素因数の和:55813

約数の個数: 24

約数和(自身を含む): 47703870

約数和(自身を除く): 25833014

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55793, 111586, 223172, 390551, 446344, 781102, 1562204, 2733857, 3124408, 5467714, 10935428, 21870856]

約数ペア:

[(1, 21870856), (2, 10935428), (4, 5467714), (7, 3124408), (8, 2733857), (14, 1562204), (28, 781102), (49, 446344), (56, 390551), (98, 223172), (196, 111586), (392, 55793)]