20865638

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{3221}}^1$

素因数の和:3343

約数の個数: 16

約数和(自身を含む): 32477760

約数和(自身を除く): 11612122

約数列:

[1, 2, 41, 79, 82, 158, 3221, 3239, 6442, 6478, 132061, 254459, 264122, 508918, 10432819, 20865638]

約数ペア:

[(1, 20865638), (2, 10432819), (41, 508918), (79, 264122), (82, 254459), (158, 132061), (3221, 6478), (3239, 6442)]