21512465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{17419}}^1$

素因数の和:17456

約数の個数: 16

約数和(自身を含む): 29265600

約数和(自身を除く): 7753135

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 17419, 87095, 226447, 330961, 1132235, 1654805, 4302493, 21512465]

約数ペア:

[(1, 21512465), (5, 4302493), (13, 1654805), (19, 1132235), (65, 330961), (95, 226447), (247, 87095), (1235, 17419)]