20939624

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2099}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 20640376

約数列:

[1, 2, 4, 8, 29, 43, 58, 86, 116, 172, 232, 344, 1247, 2099, 2494, 4198, 4988, 8396, 9976, 16792, 60871, 90257, 121742, 180514, 243484, 361028, 486968, 722056, 2617453, 5234906, 10469812, 20939624]

約数ペア:

[(1, 20939624), (2, 10469812), (4, 5234906), (8, 2617453), (29, 722056), (43, 486968), (58, 361028), (86, 243484), (116, 180514), (172, 121742), (232, 90257), (344, 60871), (1247, 16792), (2099, 9976), (2494, 8396), (4198, 4988)]