28090179

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 17068221

約数列:

[1, 3, 9, 13, 27, 39, 117, 191, 351, 419, 573, 1257, 1719, 2483, 3771, 5157, 5447, 7449, 11313, 16341, 22347, 49023, 67041, 80029, 147069, 240087, 720261, 1040377, 2160783, 3121131, 9363393, 28090179]

約数ペア:

[(1, 28090179), (3, 9363393), (9, 3121131), (13, 2160783), (27, 1040377), (39, 720261), (117, 240087), (191, 147069), (351, 80029), (419, 67041), (573, 49023), (1257, 22347), (1719, 16341), (2483, 11313), (3771, 7449), (5157, 5447)]