81858669

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 118195200

約数和(自身を除く): 36336531

約数列:

[1, 3, 19, 57, 71, 113, 179, 213, 339, 537, 1349, 2147, 3401, 4047, 6441, 8023, 10203, 12709, 20227, 24069, 38127, 60681, 152437, 241471, 384313, 457311, 724413, 1152939, 1436117, 4308351, 27286223, 81858669]

約数ペア:

[(1, 81858669), (3, 27286223), (19, 4308351), (57, 1436117), (71, 1152939), (113, 724413), (179, 457311), (213, 384313), (339, 241471), (537, 152437), (1349, 60681), (2147, 38127), (3401, 24069), (4047, 20227), (6441, 12709), (8023, 10203)]