20281788

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{19427}}^1$

素因数の和:19466

約数の個数: 36

約数和(自身を含む): 53038440

約数和(自身を除く): 32756652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 19427, 38854, 58281, 77708, 116562, 174843, 233124, 349686, 563383, 699372, 1126766, 1690149, 2253532, 3380298, 5070447, 6760596, 10140894, 20281788]

約数ペア:

[(1, 20281788), (2, 10140894), (3, 6760596), (4, 5070447), (6, 3380298), (9, 2253532), (12, 1690149), (18, 1126766), (29, 699372), (36, 563383), (58, 349686), (87, 233124), (116, 174843), (174, 116562), (261, 77708), (348, 58281), (522, 38854), (1044, 19427)]