19989165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1499}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 36864000

約数和(自身を除く): 16874835

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 127, 381, 635, 889, 1499, 1905, 2667, 4445, 4497, 7495, 10493, 13335, 22485, 31479, 52465, 157395, 190373, 571119, 951865, 1332611, 2855595, 3997833, 6663055, 19989165]

約数ペア:

[(1, 19989165), (3, 6663055), (5, 3997833), (7, 2855595), (15, 1332611), (21, 951865), (35, 571119), (105, 190373), (127, 157395), (381, 52465), (635, 31479), (889, 22485), (1499, 13335), (1905, 10493), (2667, 7495), (4445, 4497)]