19555221

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{40487}}^1$

素因数の和:40520

約数の個数: 16

約数和(自身を含む): 31094784

約数和(自身を除く): 11539563

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 40487, 121461, 283409, 850227, 931201, 2793603, 6518407, 19555221]

約数ペア:

[(1, 19555221), (3, 6518407), (7, 2793603), (21, 931201), (23, 850227), (69, 283409), (161, 121461), (483, 40487)]