278330533

素因数分解:

${\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1\times {\mathrm{641}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 303722496

約数和(自身を除く): 25391963

約数列:

[1, 13, 127, 263, 641, 1651, 3419, 8333, 33401, 81407, 168583, 434213, 1058291, 2191579, 21410041, 278330533]

約数ペア:

[(1, 278330533), (13, 21410041), (127, 2191579), (263, 1058291), (641, 434213), (1651, 168583), (3419, 81407), (8333, 33401)]