19465168

素因数分解:

$2^4\times {\mathrm{1097}}^1\times {\mathrm{1109}}^1$

素因数の和:2214

約数の個数: 20

約数和(自身を含む): 37782180

約数和(自身を除く): 18317012

約数列:

[1, 2, 4, 8, 16, 1097, 1109, 2194, 2218, 4388, 4436, 8776, 8872, 17552, 17744, 1216573, 2433146, 4866292, 9732584, 19465168]

約数ペア:

[(1, 19465168), (2, 9732584), (4, 4866292), (8, 2433146), (16, 1216573), (1097, 17744), (1109, 17552), (2194, 8872), (2218, 8776), (4388, 4436)]