28471527

素因数分解:

$3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{757}}^1$

素因数の和:972

約数の個数: 32

約数和(自身を含む): 48512000

約数和(自身を除く): 20040473

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 199, 597, 757, 1393, 1791, 2271, 4179, 5299, 5373, 6813, 12537, 15897, 20439, 37611, 47691, 143073, 150643, 451929, 1054501, 1355787, 3163503, 4067361, 9490509, 28471527]

約数ペア:

[(1, 28471527), (3, 9490509), (7, 4067361), (9, 3163503), (21, 1355787), (27, 1054501), (63, 451929), (189, 150643), (199, 143073), (597, 47691), (757, 37611), (1393, 20439), (1791, 15897), (2271, 12537), (4179, 6813), (5299, 5373)]