21128424

素因数分解:

$2^3\times 3^1\times {\mathrm{883}}^1\times {\mathrm{997}}^1$

素因数の和:1889

約数の個数: 32

約数和(自身を含む): 52933920

約数和(自身を除く): 31805496

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 883, 997, 1766, 1994, 2649, 2991, 3532, 3988, 5298, 5982, 7064, 7976, 10596, 11964, 21192, 23928, 880351, 1760702, 2641053, 3521404, 5282106, 7042808, 10564212, 21128424]

約数ペア:

[(1, 21128424), (2, 10564212), (3, 7042808), (4, 5282106), (6, 3521404), (8, 2641053), (12, 1760702), (24, 880351), (883, 23928), (997, 21192), (1766, 11964), (1994, 10596), (2649, 7976), (2991, 7064), (3532, 5982), (3988, 5298)]