27990706

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{683}}^1$

素因数の和:1377

約数の個数: 16

約数和(自身を含む): 43469568

約数和(自身を除く): 15478862

約数列:

[1, 2, 31, 62, 661, 683, 1322, 1366, 20491, 21173, 40982, 42346, 451463, 902926, 13995353, 27990706]

約数ペア:

[(1, 27990706), (2, 13995353), (31, 902926), (62, 451463), (661, 42346), (683, 40982), (1322, 21173), (1366, 20491)]