18700619

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:466

約数の個数: 16

約数和(自身を含む): 21897216

約数和(自身を除く): 3196597

約数列:

[1, 7, 71, 191, 197, 497, 1337, 1379, 13561, 13987, 37627, 94927, 97909, 263389, 2671517, 18700619]

約数ペア:

[(1, 18700619), (7, 2671517), (71, 263389), (191, 97909), (197, 94927), (497, 37627), (1337, 13987), (1379, 13561)]