21412605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 36609408

約数和(自身を除く): 15196803

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 641, 655, 1923, 1965, 2227, 3205, 6681, 9615, 10897, 11135, 32691, 33405, 54485, 83971, 163455, 251913, 419855, 1259565, 1427507, 4282521, 7137535, 21412605]

約数ペア:

[(1, 21412605), (3, 7137535), (5, 4282521), (15, 1427507), (17, 1259565), (51, 419855), (85, 251913), (131, 163455), (255, 83971), (393, 54485), (641, 33405), (655, 32691), (1923, 11135), (1965, 10897), (2227, 9615), (3205, 6681)]