81012701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 107827200

約数和(自身を除く): 26814499

約数列:

[1, 7, 11, 17, 77, 119, 187, 199, 311, 1309, 1393, 2177, 2189, 3383, 3421, 5287, 15323, 23681, 23947, 37009, 37213, 58157, 61889, 260491, 407099, 433223, 680779, 1052113, 4765453, 7364791, 11573243, 81012701]

約数ペア:

[(1, 81012701), (7, 11573243), (11, 7364791), (17, 4765453), (77, 1052113), (119, 680779), (187, 433223), (199, 407099), (311, 260491), (1309, 61889), (1393, 58157), (2177, 37213), (2189, 37009), (3383, 23947), (3421, 23681), (5287, 15323)]