18747885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1217}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 32739840

約数和(自身を除く): 13991955

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1217, 3081, 3651, 5135, 6085, 15405, 15821, 18255, 47463, 79105, 96143, 237315, 288429, 480715, 1249859, 1442145, 3749577, 6249295, 18747885]

約数ペア:

[(1, 18747885), (3, 6249295), (5, 3749577), (13, 1442145), (15, 1249859), (39, 480715), (65, 288429), (79, 237315), (195, 96143), (237, 79105), (395, 47463), (1027, 18255), (1185, 15821), (1217, 15405), (3081, 6085), (3651, 5135)]