201457989

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{809}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 312595200

約数和(自身を除く): 111137211

約数列:

[1, 3, 9, 23, 27, 69, 207, 401, 621, 809, 1203, 2427, 3609, 7281, 9223, 10827, 18607, 21843, 27669, 55821, 83007, 167463, 249021, 324409, 502389, 973227, 2919681, 7461407, 8759043, 22384221, 67152663, 201457989]

約数ペア:

[(1, 201457989), (3, 67152663), (9, 22384221), (23, 8759043), (27, 7461407), (69, 2919681), (207, 973227), (401, 502389), (621, 324409), (809, 249021), (1203, 167463), (2427, 83007), (3609, 55821), (7281, 27669), (9223, 21843), (10827, 18607)]