81380271

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{54581}}^1$

素因数の和:54662

約数の個数: 16

約数和(自身を含む): 125756928

約数和(自身を除く): 44376657

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 54581, 163743, 382067, 1146201, 3875251, 11625753, 27126757, 81380271]

約数ペア:

[(1, 81380271), (3, 27126757), (7, 11625753), (21, 3875251), (71, 1146201), (213, 382067), (497, 163743), (1491, 54581)]