20877688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1949}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 42588000

約数和(自身を除く): 21710312

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 206, 412, 824, 1339, 1949, 2678, 3898, 5356, 7796, 10712, 15592, 25337, 50674, 101348, 200747, 202696, 401494, 802988, 1605976, 2609711, 5219422, 10438844, 20877688]

約数ペア:

[(1, 20877688), (2, 10438844), (4, 5219422), (8, 2609711), (13, 1605976), (26, 802988), (52, 401494), (103, 202696), (104, 200747), (206, 101348), (412, 50674), (824, 25337), (1339, 15592), (1949, 10712), (2678, 7796), (3898, 5356)]