20397904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43961}}^1$

素因数の和:43998

約数の個数: 20

約数和(自身を含む): 40884660

約数和(自身を除く): 20486756

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 43961, 87922, 175844, 351688, 703376, 1274869, 2549738, 5099476, 10198952, 20397904]

約数ペア:

[(1, 20397904), (2, 10198952), (4, 5099476), (8, 2549738), (16, 1274869), (29, 703376), (58, 351688), (116, 175844), (232, 87922), (464, 43961)]