21081776

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{6827}}^1$

素因数の和:7028

約数の個数: 20

約数和(自身を含む): 41063592

約数和(自身を除く): 19981816

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 6827, 13654, 27308, 54616, 109232, 1317611, 2635222, 5270444, 10540888, 21081776]

約数ペア:

[(1, 21081776), (2, 10540888), (4, 5270444), (8, 2635222), (16, 1317611), (193, 109232), (386, 54616), (772, 27308), (1544, 13654), (3088, 6827)]