71999523

素因数分解:

$3^4\times {\mathrm{397}}^1\times {\mathrm{2239}}^1$

素因数の和:2648

約数の個数: 20

約数和(自身を含む): 107873920

約数和(自身を除く): 35874397

約数列:

[1, 3, 9, 27, 81, 397, 1191, 2239, 3573, 6717, 10719, 20151, 32157, 60453, 181359, 888883, 2666649, 7999947, 23999841, 71999523]

約数ペア:

[(1, 71999523), (3, 23999841), (9, 7999947), (27, 2666649), (81, 888883), (397, 181359), (1191, 60453), (2239, 32157), (3573, 20151), (6717, 10719)]