20989902

素因数分解:

$2^1\times 3^1\times {\mathrm{761}}^1\times {\mathrm{4597}}^1$

素因数の和:5363

約数の個数: 16

約数和(自身を含む): 42044112

約数和(自身を除く): 21054210

約数列:

[1, 2, 3, 6, 761, 1522, 2283, 4566, 4597, 9194, 13791, 27582, 3498317, 6996634, 10494951, 20989902]

約数ペア:

[(1, 20989902), (2, 10494951), (3, 6996634), (6, 3498317), (761, 27582), (1522, 13791), (2283, 9194), (4566, 4597)]