71878521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1279}}^1$

素因数の和:1437

約数の個数: 32

約数和(自身を含む): 113541120

約数和(自身を除く): 41662599

約数列:

[1, 3, 11, 13, 33, 39, 131, 143, 393, 429, 1279, 1441, 1703, 3837, 4323, 5109, 14069, 16627, 18733, 42207, 49881, 56199, 167549, 182897, 502647, 548691, 1843039, 2178137, 5529117, 6534411, 23959507, 71878521]

約数ペア:

[(1, 71878521), (3, 23959507), (11, 6534411), (13, 5529117), (33, 2178137), (39, 1843039), (131, 548691), (143, 502647), (393, 182897), (429, 167549), (1279, 56199), (1441, 49881), (1703, 42207), (3837, 18733), (4323, 16627), (5109, 14069)]