20925892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3907}}^1$

素因数の和:4027

約数の個数: 24

約数和(自身を含む): 39830336

約数和(自身を除く): 18904444

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3907, 5356, 7814, 15628, 50791, 101582, 203164, 402421, 804842, 1609684, 5231473, 10462946, 20925892]

約数ペア:

[(1, 20925892), (2, 10462946), (4, 5231473), (13, 1609684), (26, 804842), (52, 402421), (103, 203164), (206, 101582), (412, 50791), (1339, 15628), (2678, 7814), (3907, 5356)]