20499262

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 16079042

約数列:

[1, 2, 7, 14, 41, 71, 82, 142, 287, 497, 503, 574, 994, 1006, 2911, 3521, 5822, 7042, 20377, 20623, 35713, 40754, 41246, 71426, 144361, 249991, 288722, 499982, 1464233, 2928466, 10249631, 20499262]

約数ペア:

[(1, 20499262), (2, 10249631), (7, 2928466), (14, 1464233), (41, 499982), (71, 288722), (82, 249991), (142, 144361), (287, 71426), (497, 41246), (503, 40754), (574, 35713), (994, 20623), (1006, 20377), (2911, 7042), (3521, 5822)]