87161987

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 104186880

約数和(自身を除く): 17024893

約数列:

[1, 11, 19, 31, 121, 209, 341, 589, 1223, 2299, 3751, 6479, 13453, 23237, 37913, 71269, 147983, 255607, 417043, 720347, 2811677, 4587473, 7923817, 87161987]

約数ペア:

[(1, 87161987), (11, 7923817), (19, 4587473), (31, 2811677), (121, 720347), (209, 417043), (341, 255607), (589, 147983), (1223, 71269), (2299, 37913), (3751, 23237), (6479, 13453)]