28248441

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 43400448

約数和(自身を除く): 15152007

約数列:

[1, 3, 13, 17, 39, 51, 137, 221, 311, 411, 663, 933, 1781, 2329, 4043, 5287, 5343, 6987, 12129, 15861, 30277, 42607, 68731, 90831, 127821, 206193, 553891, 724319, 1661673, 2172957, 9416147, 28248441]

約数ペア:

[(1, 28248441), (3, 9416147), (13, 2172957), (17, 1661673), (39, 724319), (51, 553891), (137, 206193), (221, 127821), (311, 90831), (411, 68731), (663, 42607), (933, 30277), (1781, 15861), (2329, 12129), (4043, 6987), (5287, 5343)]