20805220821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{188029}}^1$

素因数の和:188529

約数の個数: 32

約数和(自身を含む): 34657689600

約数和(自身を除く): 13852468779

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 479, 1437, 3353, 5269, 10059, 15807, 36883, 110649, 188029, 564087, 1316203, 2068319, 3948609, 6204957, 14478233, 43434699, 90065891, 270197673, 630461237, 990724801, 1891383711, 2972174403, 6935073607, 20805220821]

約数ペア:

[(1, 20805220821), (3, 6935073607), (7, 2972174403), (11, 1891383711), (21, 990724801), (33, 630461237), (77, 270197673), (231, 90065891), (479, 43434699), (1437, 14478233), (3353, 6204957), (5269, 3948609), (10059, 2068319), (15807, 1316203), (36883, 564087), (110649, 188029)]