21705616

素因数分解:

$2^4\times {\mathrm{373}}^1\times {\mathrm{3637}}^1$

素因数の和:4018

約数の個数: 20

約数和(自身を含む): 42178972

約数和(自身を除く): 20473356

約数列:

[1, 2, 4, 8, 16, 373, 746, 1492, 2984, 3637, 5968, 7274, 14548, 29096, 58192, 1356601, 2713202, 5426404, 10852808, 21705616]

約数ペア:

[(1, 21705616), (2, 10852808), (4, 5426404), (8, 2713202), (16, 1356601), (373, 58192), (746, 29096), (1492, 14548), (2984, 7274), (3637, 5968)]