19874295

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21031}}^1$

素因数の和:21052

約数の個数: 32

約数和(自身を含む): 40381440

約数和(自身を除く): 20507145

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21031, 63093, 105155, 147217, 189279, 315465, 441651, 567837, 736085, 946395, 1324953, 2208255, 2839185, 3974859, 6624765, 19874295]

約数ペア:

[(1, 19874295), (3, 6624765), (5, 3974859), (7, 2839185), (9, 2208255), (15, 1324953), (21, 946395), (27, 736085), (35, 567837), (45, 441651), (63, 315465), (105, 189279), (135, 147217), (189, 105155), (315, 63093), (945, 21031)]