15820785

素因数分解:

$3^3\times 5^1\times {\mathrm{117191}}^1$

素因数の和:117205

約数の個数: 16

約数和(自身を含む): 28126080

約数和(自身を除く): 12305295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 117191, 351573, 585955, 1054719, 1757865, 3164157, 5273595, 15820785]

約数ペア:

[(1, 15820785), (3, 5273595), (5, 3164157), (9, 1757865), (15, 1054719), (27, 585955), (45, 351573), (135, 117191)]