81391569

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{53093}}^1$

素因数の和:53176

約数の個数: 16

約数和(自身を含む): 125726592

約数和(自身を除く): 44335023

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 53093, 159279, 371651, 1114953, 3875789, 11627367, 27130523, 81391569]

約数ペア:

[(1, 81391569), (3, 27130523), (7, 11627367), (21, 3875789), (73, 1114953), (219, 371651), (511, 159279), (1533, 53093)]