21465268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15737}}^1$

素因数の和:15783

約数の個数: 24

約数和(自身を含む): 42303744

約数和(自身を除く): 20838476

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15737, 31474, 62948, 173107, 346214, 487847, 692428, 975694, 1951388, 5366317, 10732634, 21465268]

約数ペア:

[(1, 21465268), (2, 10732634), (4, 5366317), (11, 1951388), (22, 975694), (31, 692428), (44, 487847), (62, 346214), (124, 173107), (341, 62948), (682, 31474), (1364, 15737)]