20891484

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20011}}^1$

素因数の和:20050

約数の個数: 36

約数和(自身を含む): 54632760

約数和(自身を除く): 33741276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20011, 40022, 60033, 80044, 120066, 180099, 240132, 360198, 580319, 720396, 1160638, 1740957, 2321276, 3481914, 5222871, 6963828, 10445742, 20891484]

約数ペア:

[(1, 20891484), (2, 10445742), (3, 6963828), (4, 5222871), (6, 3481914), (9, 2321276), (12, 1740957), (18, 1160638), (29, 720396), (36, 580319), (58, 360198), (87, 240132), (116, 180099), (174, 120066), (261, 80044), (348, 60033), (522, 40022), (1044, 20011)]