20985412

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44087}}^1$

素因数の和:44115

約数の個数: 24

約数和(自身を含む): 44440704

約数和(自身を除く): 23455292

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44087, 88174, 176348, 308609, 617218, 749479, 1234436, 1498958, 2997916, 5246353, 10492706, 20985412]

約数ペア:

[(1, 20985412), (2, 10492706), (4, 5246353), (7, 2997916), (14, 1498958), (17, 1234436), (28, 749479), (34, 617218), (68, 308609), (119, 176348), (238, 88174), (476, 44087)]