9988209

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 19206720

約数和(自身を除く): 9218511

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 49, 63, 71, 77, 87, 99, 147, 203, 213, 231, 261, 319, 441, 497, 539, 609, 639, 693, 781, 957, 1421, 1491, 1617, 1827, 2059, 2233, 2343, 2871, 3479, 4263, 4473, 4851, 5467, 6177, 6699, 7029, 10437, 12789, 14413, 15631, 16401, 18531, 20097, 22649, 31311, 38269, 43239, 46893, 49203, 67947, 100891, 114807, 129717, 140679, 158543, 203841, 302673, 344421, 475629, 908019, 1109801, 1426887, 3329403, 9988209]

約数ペア:

[(1, 9988209), (3, 3329403), (7, 1426887), (9, 1109801), (11, 908019), (21, 475629), (29, 344421), (33, 302673), (49, 203841), (63, 158543), (71, 140679), (77, 129717), (87, 114807), (99, 100891), (147, 67947), (203, 49203), (213, 46893), (231, 43239), (261, 38269), (319, 31311), (441, 22649), (497, 20097), (539, 18531), (609, 16401), (639, 15631), (693, 14413), (781, 12789), (957, 10437), (1421, 7029), (1491, 6699), (1617, 6177), (1827, 5467), (2059, 4851), (2233, 4473), (2343, 4263), (2871, 3479)]