20994699

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11261301

約数列:

[1, 3, 11, 23, 33, 69, 139, 199, 253, 417, 597, 759, 1529, 2189, 3197, 4577, 4587, 6567, 9591, 13731, 27661, 35167, 50347, 82983, 105501, 151041, 304271, 636203, 912813, 1908609, 6998233, 20994699]

約数ペア:

[(1, 20994699), (3, 6998233), (11, 1908609), (23, 912813), (33, 636203), (69, 304271), (139, 151041), (199, 105501), (253, 82983), (417, 50347), (597, 35167), (759, 27661), (1529, 13731), (2189, 9591), (3197, 6567), (4577, 4587)]