18961768

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{593}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 21810392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 593, 1142, 1186, 2284, 2372, 3997, 4151, 4568, 4744, 7994, 8302, 15988, 16604, 31976, 33208, 338603, 677206, 1354412, 2370221, 2708824, 4740442, 9480884, 18961768]

約数ペア:

[(1, 18961768), (2, 9480884), (4, 4740442), (7, 2708824), (8, 2370221), (14, 1354412), (28, 677206), (56, 338603), (571, 33208), (593, 31976), (1142, 16604), (1186, 15988), (2284, 8302), (2372, 7994), (3997, 4744), (4151, 4568)]