21724094

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3989}}^1$

素因数の和:4387

約数の個数: 16

約数和(自身を含む): 37346400

約数和(自身を除く): 15622306

約数列:

[1, 2, 7, 14, 389, 778, 2723, 3989, 5446, 7978, 27923, 55846, 1551721, 3103442, 10862047, 21724094]

約数ペア:

[(1, 21724094), (2, 10862047), (7, 3103442), (14, 1551721), (389, 55846), (778, 27923), (2723, 7978), (3989, 5446)]