21101712

素因数分解:

$2^4\times 3^1\times {\mathrm{499}}^1\times {\mathrm{881}}^1$

素因数の和:1391

約数の個数: 40

約数和(自身を含む): 54684000

約数和(自身を除く): 33582288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 499, 881, 998, 1497, 1762, 1996, 2643, 2994, 3524, 3992, 5286, 5988, 7048, 7984, 10572, 11976, 14096, 21144, 23952, 42288, 439619, 879238, 1318857, 1758476, 2637714, 3516952, 5275428, 7033904, 10550856, 21101712]

約数ペア:

[(1, 21101712), (2, 10550856), (3, 7033904), (4, 5275428), (6, 3516952), (8, 2637714), (12, 1758476), (16, 1318857), (24, 879238), (48, 439619), (499, 42288), (881, 23952), (998, 21144), (1497, 14096), (1762, 11976), (1996, 10572), (2643, 7984), (2994, 7048), (3524, 5988), (3992, 5286)]