20939044

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22969436

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 107, 116, 203, 214, 241, 406, 428, 482, 749, 812, 964, 1498, 1687, 2996, 3103, 3374, 6206, 6748, 6989, 12412, 13978, 21721, 25787, 27956, 43442, 48923, 51574, 86884, 97846, 103148, 180509, 195692, 361018, 722036, 747823, 1495646, 2991292, 5234761, 10469522, 20939044]

約数ペア:

[(1, 20939044), (2, 10469522), (4, 5234761), (7, 2991292), (14, 1495646), (28, 747823), (29, 722036), (58, 361018), (107, 195692), (116, 180509), (203, 103148), (214, 97846), (241, 86884), (406, 51574), (428, 48923), (482, 43442), (749, 27956), (812, 25787), (964, 21721), (1498, 13978), (1687, 12412), (2996, 6989), (3103, 6748), (3374, 6206)]