20091922

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{761}}^1$

素因数の和:1113

約数の個数: 16

約数和(自身を含む): 30979872

約数和(自身を除く): 10887950

約数列:

[1, 2, 43, 86, 307, 614, 761, 1522, 13201, 26402, 32723, 65446, 233627, 467254, 10045961, 20091922]

約数ペア:

[(1, 20091922), (2, 10045961), (43, 467254), (86, 233627), (307, 65446), (614, 32723), (761, 26402), (1522, 13201)]