21220052

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3847}}^1$

素因数の和:4055

約数の個数: 24

約数和(自身を含む): 42666624

約数和(自身を除く): 21446572

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 3847, 5516, 7694, 15388, 26929, 53858, 107716, 757859, 1515718, 3031436, 5305013, 10610026, 21220052]

約数ペア:

[(1, 21220052), (2, 10610026), (4, 5305013), (7, 3031436), (14, 1515718), (28, 757859), (197, 107716), (394, 53858), (788, 26929), (1379, 15388), (2758, 7694), (3847, 5516)]