19500789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 15335691

約数列:

[1, 3, 7, 11, 21, 29, 33, 41, 71, 77, 87, 123, 203, 213, 231, 287, 319, 451, 497, 609, 781, 861, 957, 1189, 1353, 1491, 2059, 2233, 2343, 2911, 3157, 3567, 5467, 6177, 6699, 8323, 8733, 9471, 13079, 14413, 16401, 20377, 22649, 24969, 32021, 39237, 43239, 61131, 67947, 84419, 91553, 96063, 158543, 224147, 253257, 274659, 475629, 590933, 672441, 928609, 1772799, 2785827, 6500263, 19500789]

約数ペア:

[(1, 19500789), (3, 6500263), (7, 2785827), (11, 1772799), (21, 928609), (29, 672441), (33, 590933), (41, 475629), (71, 274659), (77, 253257), (87, 224147), (123, 158543), (203, 96063), (213, 91553), (231, 84419), (287, 67947), (319, 61131), (451, 43239), (497, 39237), (609, 32021), (781, 24969), (861, 22649), (957, 20377), (1189, 16401), (1353, 14413), (1491, 13079), (2059, 9471), (2233, 8733), (2343, 8323), (2911, 6699), (3157, 6177), (3567, 5467)]