81531166

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{15661}}^1$

素因数の和:15819

約数の個数: 16

約数和(自身を含む): 129681360

約数和(自身を除く): 48150194

約数列:

[1, 2, 19, 38, 137, 274, 2603, 5206, 15661, 31322, 297559, 595118, 2145557, 4291114, 40765583, 81531166]

約数ペア:

[(1, 81531166), (2, 40765583), (19, 4291114), (38, 2145557), (137, 595118), (274, 297559), (2603, 31322), (5206, 15661)]