21517700

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2011}}^1$

素因数の和:2132

約数の個数: 36

約数和(自身を含む): 47153232

約数和(自身を除く): 25635532

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 2011, 2140, 2675, 4022, 5350, 8044, 10055, 10700, 20110, 40220, 50275, 100550, 201100, 215177, 430354, 860708, 1075885, 2151770, 4303540, 5379425, 10758850, 21517700]

約数ペア:

[(1, 21517700), (2, 10758850), (4, 5379425), (5, 4303540), (10, 2151770), (20, 1075885), (25, 860708), (50, 430354), (100, 215177), (107, 201100), (214, 100550), (428, 50275), (535, 40220), (1070, 20110), (2011, 10700), (2140, 10055), (2675, 8044), (4022, 5350)]