20767864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{503}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 42124320

約数和(自身を除く): 21356456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 503, 794, 1006, 1588, 2012, 3176, 4024, 5161, 6539, 10322, 13078, 20644, 26156, 41288, 52312, 199691, 399382, 798764, 1597528, 2595983, 5191966, 10383932, 20767864]

約数ペア:

[(1, 20767864), (2, 10383932), (4, 5191966), (8, 2595983), (13, 1597528), (26, 798764), (52, 399382), (104, 199691), (397, 52312), (503, 41288), (794, 26156), (1006, 20644), (1588, 13078), (2012, 10322), (3176, 6539), (4024, 5161)]