7721996

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 13860000

約数和(自身を除く): 6138004

約数列:

[1, 2, 4, 89, 109, 178, 199, 218, 356, 398, 436, 796, 9701, 17711, 19402, 21691, 35422, 38804, 43382, 70844, 86764, 1930499, 3860998, 7721996]

約数ペア:

[(1, 7721996), (2, 3860998), (4, 1930499), (89, 86764), (109, 70844), (178, 43382), (199, 38804), (218, 35422), (356, 21691), (398, 19402), (436, 17711), (796, 9701)]