21278910081

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{265247}}^1$

素因数の和:265302

約数の個数: 48

約数和(自身を含む): 35560207872

約数和(自身を除く): 14281297791

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 121, 143, 187, 221, 363, 429, 561, 663, 1573, 2057, 2431, 4719, 6171, 7293, 26741, 80223, 265247, 795741, 2917717, 3448211, 4509199, 8753151, 10344633, 13527597, 32094887, 37930321, 49601189, 58619587, 96284661, 113790963, 148803567, 175858761, 417233531, 545613079, 644815457, 1251700593, 1636839237, 1934446371, 7092970027, 21278910081]

約数ペア:

[(1, 21278910081), (3, 7092970027), (11, 1934446371), (13, 1636839237), (17, 1251700593), (33, 644815457), (39, 545613079), (51, 417233531), (121, 175858761), (143, 148803567), (187, 113790963), (221, 96284661), (363, 58619587), (429, 49601189), (561, 37930321), (663, 32094887), (1573, 13527597), (2057, 10344633), (2431, 8753151), (4719, 4509199), (6171, 3448211), (7293, 2917717), (26741, 795741), (80223, 265247)]