20971404

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{34267}}^1$

素因数の和:34294

約数の個数: 36

約数和(自身を含む): 56130984

約数和(自身を除く): 35159580

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612, 34267, 68534, 102801, 137068, 205602, 308403, 411204, 582539, 616806, 1165078, 1233612, 1747617, 2330156, 3495234, 5242851, 6990468, 10485702, 20971404]

約数ペア:

[(1, 20971404), (2, 10485702), (3, 6990468), (4, 5242851), (6, 3495234), (9, 2330156), (12, 1747617), (17, 1233612), (18, 1165078), (34, 616806), (36, 582539), (51, 411204), (68, 308403), (102, 205602), (153, 137068), (204, 102801), (306, 68534), (612, 34267)]