19188455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 27675648

約数和(自身を除く): 8487193

約数列:

[1, 5, 11, 13, 47, 55, 65, 143, 235, 517, 571, 611, 715, 2585, 2855, 3055, 6281, 6721, 7423, 26837, 31405, 33605, 37115, 81653, 134185, 295207, 348881, 408265, 1476035, 1744405, 3837691, 19188455]

約数ペア:

[(1, 19188455), (5, 3837691), (11, 1744405), (13, 1476035), (47, 408265), (55, 348881), (65, 295207), (143, 134185), (235, 81653), (517, 37115), (571, 33605), (611, 31405), (715, 26837), (2585, 7423), (2855, 6721), (3055, 6281)]