20572520913

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{278387}}^1$

素因数の和:278443

約数の個数: 64

約数和(自身を含む): 38484357120

約数和(自身を除く): 17911836207

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 51, 63, 69, 119, 153, 161, 189, 207, 357, 391, 459, 483, 621, 1071, 1173, 1449, 2737, 3213, 3519, 4347, 8211, 10557, 24633, 73899, 278387, 835161, 1948709, 2505483, 4732579, 5846127, 6402901, 7516449, 14197737, 17538381, 19208703, 33128053, 42593211, 44820307, 52615143, 57626109, 99384159, 108849317, 127779633, 134460921, 172878327, 298152477, 326547951, 403382763, 761945219, 894457431, 979643853, 1210148289, 2285835657, 2938931559, 6857506971, 20572520913]

約数ペア:

[(1, 20572520913), (3, 6857506971), (7, 2938931559), (9, 2285835657), (17, 1210148289), (21, 979643853), (23, 894457431), (27, 761945219), (51, 403382763), (63, 326547951), (69, 298152477), (119, 172878327), (153, 134460921), (161, 127779633), (189, 108849317), (207, 99384159), (357, 57626109), (391, 52615143), (459, 44820307), (483, 42593211), (621, 33128053), (1071, 19208703), (1173, 17538381), (1449, 14197737), (2737, 7516449), (3213, 6402901), (3519, 5846127), (4347, 4732579), (8211, 2505483), (10557, 1948709), (24633, 835161), (73899, 278387)]