21713811

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8689}}^1$

素因数の和:8723

約数の個数: 24

約数和(自身を含む): 35663760

約数和(自身を除く): 13949949

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8689, 26067, 60823, 147713, 182469, 425761, 443139, 1033991, 1277283, 3101973, 7237937, 21713811]

約数ペア:

[(1, 21713811), (3, 7237937), (7, 3101973), (17, 1277283), (21, 1033991), (49, 443139), (51, 425761), (119, 182469), (147, 147713), (357, 60823), (833, 26067), (2499, 8689)]