20985404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{773}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 40179888

約数和(自身を除く): 19194484

約数列:

[1, 2, 4, 11, 22, 44, 617, 773, 1234, 1546, 2468, 3092, 6787, 8503, 13574, 17006, 27148, 34012, 476941, 953882, 1907764, 5246351, 10492702, 20985404]

約数ペア:

[(1, 20985404), (2, 10492702), (4, 5246351), (11, 1907764), (22, 953882), (44, 476941), (617, 34012), (773, 27148), (1234, 17006), (1546, 13574), (2468, 8503), (3092, 6787)]