19847529

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13049}}^1$

素因数の和:13081

約数の個数: 18

約数和(自身を含む): 31045950

約数和(自身を除く): 11198421

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13049, 39147, 117441, 169637, 508911, 1526733, 2205281, 6615843, 19847529]

約数ペア:

[(1, 19847529), (3, 6615843), (9, 2205281), (13, 1526733), (39, 508911), (117, 169637), (169, 117441), (507, 39147), (1521, 13049)]