21143780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151027}}^1$

素因数の和:151043

約数の個数: 24

約数和(自身を含む): 50745408

約数和(自身を除く): 29601628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151027, 302054, 604108, 755135, 1057189, 1510270, 2114378, 3020540, 4228756, 5285945, 10571890, 21143780]

約数ペア:

[(1, 21143780), (2, 10571890), (4, 5285945), (5, 4228756), (7, 3020540), (10, 2114378), (14, 1510270), (20, 1057189), (28, 755135), (35, 604108), (70, 302054), (140, 151027)]