219857955

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{881}}^1$

素因数の和:1147

約数の個数: 32

約数和(自身を含む): 357654528

約数和(自身を除く): 137796573

約数列:

[1, 3, 5, 15, 127, 131, 381, 393, 635, 655, 881, 1905, 1965, 2643, 4405, 13215, 16637, 49911, 83185, 111887, 115411, 249555, 335661, 346233, 559435, 577055, 1678305, 1731165, 14657197, 43971591, 73285985, 219857955]

約数ペア:

[(1, 219857955), (3, 73285985), (5, 43971591), (15, 14657197), (127, 1731165), (131, 1678305), (381, 577055), (393, 559435), (635, 346233), (655, 335661), (881, 249555), (1905, 115411), (1965, 111887), (2643, 83185), (4405, 49911), (13215, 16637)]