21080568

素因数分解:

$2^3\times 3^1\times {\mathrm{881}}^1\times {\mathrm{997}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 52814160

約数和(自身を除く): 31733592

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 881, 997, 1762, 1994, 2643, 2991, 3524, 3988, 5286, 5982, 7048, 7976, 10572, 11964, 21144, 23928, 878357, 1756714, 2635071, 3513428, 5270142, 7026856, 10540284, 21080568]

約数ペア:

[(1, 21080568), (2, 10540284), (3, 7026856), (4, 5270142), (6, 3513428), (8, 2635071), (12, 1756714), (24, 878357), (881, 23928), (997, 21144), (1762, 11964), (1994, 10572), (2643, 7976), (2991, 7048), (3524, 5982), (3988, 5286)]