21004046

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2713}}^1$

素因数の和:2808

約数の個数: 24

約数和(自身を含む): 37127520

約数和(自身を除く): 16123474

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2713, 3871, 5426, 7742, 18991, 37982, 132937, 214327, 265874, 428654, 1500289, 3000578, 10502023, 21004046]

約数ペア:

[(1, 21004046), (2, 10502023), (7, 3000578), (14, 1500289), (49, 428654), (79, 265874), (98, 214327), (158, 132937), (553, 37982), (1106, 18991), (2713, 7742), (3871, 5426)]