21423080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76511}}^1$

素因数の和:76529

約数の個数: 32

約数和(自身を含む): 55088640

約数和(自身を除く): 33665560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76511, 153022, 306044, 382555, 535577, 612088, 765110, 1071154, 1530220, 2142308, 2677885, 3060440, 4284616, 5355770, 10711540, 21423080]

約数ペア:

[(1, 21423080), (2, 10711540), (4, 5355770), (5, 4284616), (7, 3060440), (8, 2677885), (10, 2142308), (14, 1530220), (20, 1071154), (28, 765110), (35, 612088), (40, 535577), (56, 382555), (70, 306044), (140, 153022), (280, 76511)]