21293095

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{631}}^1$

素因数の和:1050

約数の個数: 16

約数和(自身を含む): 27165888

約数和(自身を除く): 5872793

約数列:

[1, 5, 17, 85, 397, 631, 1985, 3155, 6749, 10727, 33745, 53635, 250507, 1252535, 4258619, 21293095]

約数ペア:

[(1, 21293095), (5, 4258619), (17, 1252535), (85, 250507), (397, 53635), (631, 33745), (1985, 10727), (3155, 6749)]