21438124

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 38384640

約数和(自身を除く): 16946516

約数列:

[1, 2, 4, 67, 134, 167, 268, 334, 479, 668, 958, 1916, 11189, 22378, 32093, 44756, 64186, 79993, 128372, 159986, 319972, 5359531, 10719062, 21438124]

約数ペア:

[(1, 21438124), (2, 10719062), (4, 5359531), (67, 319972), (134, 159986), (167, 128372), (268, 79993), (334, 64186), (479, 44756), (668, 32093), (958, 22378), (1916, 11189)]