19747568

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30103}}^1$

素因数の和:30152

約数の個数: 20

約数和(自身を含む): 39195408

約数和(自身を除く): 19447840

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30103, 60206, 120412, 240824, 481648, 1234223, 2468446, 4936892, 9873784, 19747568]

約数ペア:

[(1, 19747568), (2, 9873784), (4, 4936892), (8, 2468446), (16, 1234223), (41, 481648), (82, 240824), (164, 120412), (328, 60206), (656, 30103)]