18988049661

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{1913}}^1$

素因数の和:2226

約数の個数: 64

約数和(自身を含む): 30418206720

約数和(自身を除く): 11430157059

約数列:

[1, 3, 7, 21, 31, 79, 93, 193, 217, 237, 553, 579, 651, 1351, 1659, 1913, 2449, 4053, 5739, 5983, 7347, 13391, 15247, 17143, 17949, 40173, 41881, 45741, 51429, 59303, 106729, 125643, 151127, 177909, 320187, 369209, 415121, 453381, 472657, 1057889, 1107627, 1245363, 1417971, 2584463, 3173667, 3308599, 4684937, 7753389, 9925797, 11445479, 14054811, 29167511, 32794559, 34336437, 80118353, 87502533, 98383677, 204172577, 240355059, 612517731, 904192841, 2712578523, 6329349887, 18988049661]

約数ペア:

[(1, 18988049661), (3, 6329349887), (7, 2712578523), (21, 904192841), (31, 612517731), (79, 240355059), (93, 204172577), (193, 98383677), (217, 87502533), (237, 80118353), (553, 34336437), (579, 32794559), (651, 29167511), (1351, 14054811), (1659, 11445479), (1913, 9925797), (2449, 7753389), (4053, 4684937), (5739, 3308599), (5983, 3173667), (7347, 2584463), (13391, 1417971), (15247, 1245363), (17143, 1107627), (17949, 1057889), (40173, 472657), (41881, 453381), (45741, 415121), (51429, 369209), (59303, 320187), (106729, 177909), (125643, 151127)]