21776380

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5527}}^1$

素因数の和:5733

約数の個数: 24

約数和(自身を含む): 45970848

約数和(自身を除く): 24194468

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5527, 11054, 22108, 27635, 55270, 110540, 1088819, 2177638, 4355276, 5444095, 10888190, 21776380]

約数ペア:

[(1, 21776380), (2, 10888190), (4, 5444095), (5, 4355276), (10, 2177638), (20, 1088819), (197, 110540), (394, 55270), (788, 27635), (985, 22108), (1970, 11054), (3940, 5527)]