81385569

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20693}}^1$

素因数の和:20741

約数の個数: 24

約数和(自身を含む): 129130560

約数和(自身を除く): 47744991

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 20693, 62079, 186237, 393167, 475939, 1179501, 1427817, 3538503, 4283451, 9042841, 27128523, 81385569]

約数ペア:

[(1, 81385569), (3, 27128523), (9, 9042841), (19, 4283451), (23, 3538503), (57, 1427817), (69, 1179501), (171, 475939), (207, 393167), (437, 186237), (1311, 62079), (3933, 20693)]