127985991

素因数分解:

$3^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{2039}}^1$

素因数の和:2124

約数の個数: 32

約数和(自身を含む): 202368000

約数和(自身を除く): 74382009

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 343, 427, 1029, 1281, 2039, 2989, 6117, 8967, 14273, 20923, 42819, 62769, 99911, 124379, 299733, 373137, 699377, 870653, 2098131, 2611959, 6094571, 18283713, 42661997, 127985991]

約数ペア:

[(1, 127985991), (3, 42661997), (7, 18283713), (21, 6094571), (49, 2611959), (61, 2098131), (147, 870653), (183, 699377), (343, 373137), (427, 299733), (1029, 124379), (1281, 99911), (2039, 62769), (2989, 42819), (6117, 20923), (8967, 14273)]