21887946

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{28279}}^1$

素因数の和:28330

約数の個数: 24

約数和(自身を含む): 48528480

約数和(自身を除く): 26640534

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 28279, 56558, 84837, 169674, 254511, 509022, 1215997, 2431994, 3647991, 7295982, 10943973, 21887946]

約数ペア:

[(1, 21887946), (2, 10943973), (3, 7295982), (6, 3647991), (9, 2431994), (18, 1215997), (43, 509022), (86, 254511), (129, 169674), (258, 84837), (387, 56558), (774, 28279)]