21547337

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 25219200

約数和(自身を除く): 3671863

約数列:

[1, 7, 73, 149, 283, 511, 1043, 1981, 10877, 20659, 42167, 76139, 144613, 295169, 3078191, 21547337]

約数ペア:

[(1, 21547337), (7, 3078191), (73, 295169), (149, 144613), (283, 76139), (511, 42167), (1043, 20659), (1981, 10877)]