21077375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15329}}^1$

素因数の和:15355

約数の個数: 16

約数和(自身を含む): 28697760

約数和(自身を除く): 7620385

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15329, 76645, 168619, 383225, 843095, 1916125, 4215475, 21077375]

約数ペア:

[(1, 21077375), (5, 4215475), (11, 1916125), (25, 843095), (55, 383225), (125, 168619), (275, 76645), (1375, 15329)]