18820901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 21307968

約数和(自身を除く): 2487067

約数列:

[1, 11, 37, 131, 353, 407, 1441, 3883, 4847, 13061, 46243, 53317, 143671, 508673, 1710991, 18820901]

約数ペア:

[(1, 18820901), (11, 1710991), (37, 508673), (131, 143671), (353, 53317), (407, 46243), (1441, 13061), (3883, 4847)]