31989291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 15910869

約数列:

[1, 3, 17, 29, 43, 51, 87, 129, 493, 503, 731, 1247, 1479, 1509, 2193, 3741, 8551, 14587, 21199, 21629, 25653, 43761, 63597, 64887, 247979, 367693, 627241, 743937, 1103079, 1881723, 10663097, 31989291]

約数ペア:

[(1, 31989291), (3, 10663097), (17, 1881723), (29, 1103079), (43, 743937), (51, 627241), (87, 367693), (129, 247979), (493, 64887), (503, 63597), (731, 43761), (1247, 25653), (1479, 21629), (1509, 21199), (2193, 14587), (3741, 8551)]