131657428

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{204437}}^1$

素因数の和:204471

約数の個数: 24

約数和(自身を含む): 274764672

約数和(自身を除く): 143107244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 204437, 408874, 817748, 1431059, 2862118, 4702051, 5724236, 9404102, 18808204, 32914357, 65828714, 131657428]

約数ペア:

[(1, 131657428), (2, 65828714), (4, 32914357), (7, 18808204), (14, 9404102), (23, 5724236), (28, 4702051), (46, 2862118), (92, 1431059), (161, 817748), (322, 408874), (644, 204437)]