16965220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19727}}^1$

素因数の和:19779

約数の個数: 24

約数和(自身を含む): 36457344

約数和(自身を除く): 19492124

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 19727, 39454, 78908, 98635, 197270, 394540, 848261, 1696522, 3393044, 4241305, 8482610, 16965220]

約数ペア:

[(1, 16965220), (2, 8482610), (4, 4241305), (5, 3393044), (10, 1696522), (20, 848261), (43, 394540), (86, 197270), (172, 98635), (215, 78908), (430, 39454), (860, 19727)]