216507508

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{406969}}^1$

素因数の和:406999

約数の個数: 24

約数和(自身を含む): 455806400

約数和(自身を除く): 239298892

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 406969, 813938, 1627876, 2848783, 5697566, 7732411, 11395132, 15464822, 30929644, 54126877, 108253754, 216507508]

約数ペア:

[(1, 216507508), (2, 108253754), (4, 54126877), (7, 30929644), (14, 15464822), (19, 11395132), (28, 7732411), (38, 5697566), (76, 2848783), (133, 1627876), (266, 813938), (532, 406969)]