19558136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1039}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 39748800

約数和(自身を除く): 20190664

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181, 362, 724, 1039, 1448, 2078, 2353, 4156, 4706, 8312, 9412, 13507, 18824, 27014, 54028, 108056, 188059, 376118, 752236, 1504472, 2444767, 4889534, 9779068, 19558136]

約数ペア:

[(1, 19558136), (2, 9779068), (4, 4889534), (8, 2444767), (13, 1504472), (26, 752236), (52, 376118), (104, 188059), (181, 108056), (362, 54028), (724, 27014), (1039, 18824), (1448, 13507), (2078, 9412), (2353, 8312), (4156, 4706)]