81438981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{13829}}^1$

素因数の和:13996

約数の個数: 16

約数和(自身を含む): 117720960

約数和(自身を除く): 36281979

約数列:

[1, 3, 13, 39, 151, 453, 1963, 5889, 13829, 41487, 179777, 539331, 2088179, 6264537, 27146327, 81438981]

約数ペア:

[(1, 81438981), (3, 27146327), (13, 6264537), (39, 2088179), (151, 539331), (453, 179777), (1963, 41487), (5889, 13829)]