31279031

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 39997440

約数和(自身を除く): 8718409

約数列:

[1, 7, 17, 31, 61, 119, 139, 217, 427, 527, 973, 1037, 1891, 2363, 3689, 4309, 7259, 8479, 13237, 16541, 30163, 32147, 59353, 73253, 144143, 225029, 262849, 512771, 1009001, 1839943, 4468433, 31279031]

約数ペア:

[(1, 31279031), (7, 4468433), (17, 1839943), (31, 1009001), (61, 512771), (119, 262849), (139, 225029), (217, 144143), (427, 73253), (527, 59353), (973, 32147), (1037, 30163), (1891, 16541), (2363, 13237), (3689, 8479), (4309, 7259)]