20057955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1237}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 34228224

約数和(自身を除く): 14170269

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 1237, 3243, 3711, 5405, 6185, 16215, 18555, 28451, 58139, 85353, 142255, 174417, 290695, 426765, 872085, 1337197, 4011591, 6685985, 20057955]

約数ペア:

[(1, 20057955), (3, 6685985), (5, 4011591), (15, 1337197), (23, 872085), (47, 426765), (69, 290695), (115, 174417), (141, 142255), (235, 85353), (345, 58139), (705, 28451), (1081, 18555), (1237, 16215), (3243, 6185), (3711, 5405)]