28409988

素因数分解:

$2^2\times 3^1\times {\mathrm{991}}^1\times {\mathrm{2389}}^1$

素因数の和:3387

約数の個数: 24

約数和(自身を含む): 66384640

約数和(自身を除く): 37974652

約数列:

[1, 2, 3, 4, 6, 12, 991, 1982, 2389, 2973, 3964, 4778, 5946, 7167, 9556, 11892, 14334, 28668, 2367499, 4734998, 7102497, 9469996, 14204994, 28409988]

約数ペア:

[(1, 28409988), (2, 14204994), (3, 9469996), (4, 7102497), (6, 4734998), (12, 2367499), (991, 28668), (1982, 14334), (2389, 11892), (2973, 9556), (3964, 7167), (4778, 5946)]