81331415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{27901}}^1$

素因数の和:27970

約数の個数: 16

約数和(自身を含む): 108482976

約数和(自身を除く): 27151561

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 27901, 139505, 306911, 1478753, 1534555, 7393765, 16266283, 81331415]

約数ペア:

[(1, 81331415), (5, 16266283), (11, 7393765), (53, 1534555), (55, 1478753), (265, 306911), (583, 139505), (2915, 27901)]