21977361

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1753}}^1$

素因数の和:1965

約数の個数: 24

約数和(自身を含む): 36483200

約数和(自身を除く): 14505839

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1753, 1791, 4179, 5259, 12271, 12537, 15777, 36813, 110439, 348847, 1046541, 2441929, 3139623, 7325787, 21977361]

約数ペア:

[(1, 21977361), (3, 7325787), (7, 3139623), (9, 2441929), (21, 1046541), (63, 348847), (199, 110439), (597, 36813), (1393, 15777), (1753, 12537), (1791, 12271), (4179, 5259)]