21161560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75577}}^1$

素因数の和:75595

約数の個数: 32

約数和(自身を含む): 54416160

約数和(自身を除く): 33254600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75577, 151154, 302308, 377885, 529039, 604616, 755770, 1058078, 1511540, 2116156, 2645195, 3023080, 4232312, 5290390, 10580780, 21161560]

約数ペア:

[(1, 21161560), (2, 10580780), (4, 5290390), (5, 4232312), (7, 3023080), (8, 2645195), (10, 2116156), (14, 1511540), (20, 1058078), (28, 755770), (35, 604616), (40, 529039), (56, 377885), (70, 302308), (140, 151154), (280, 75577)]