21744085

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{17189}}^1$

素因数の和:17228

約数の個数: 16

約数和(自身を含む): 29704320

約数和(自身を除く): 7960235

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 17189, 85945, 189079, 395347, 945395, 1976735, 4348817, 21744085]

約数ペア:

[(1, 21744085), (5, 4348817), (11, 1976735), (23, 945395), (55, 395347), (115, 189079), (253, 85945), (1265, 17189)]