31708131

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6113}}^1$

素因数の和:6155

約数の個数: 32

約数和(自身を含む): 54781440

約数和(自身を除く): 23073309

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 6113, 18339, 42791, 79469, 116147, 128373, 238407, 348441, 556283, 813029, 1509911, 1668849, 2439087, 4529733, 10569377, 31708131]

約数ペア:

[(1, 31708131), (3, 10569377), (7, 4529733), (13, 2439087), (19, 1668849), (21, 1509911), (39, 813029), (57, 556283), (91, 348441), (133, 238407), (247, 128373), (273, 116147), (399, 79469), (741, 42791), (1729, 18339), (5187, 6113)]