21871411208

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51583517}}^1$

素因数の和:51583576

約数の個数: 16

約数和(自身を含む): 41782649580

約数和(自身を除く): 19911238372

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51583517, 103167034, 206334068, 412668136, 2733926401, 5467852802, 10935705604, 21871411208]

約数ペア:

[(1, 21871411208), (2, 10935705604), (4, 5467852802), (8, 2733926401), (53, 412668136), (106, 206334068), (212, 103167034), (424, 51583517)]