172147473407

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{20788247}}^1$

素因数の和:20788287

約数の個数: 18

約数和(自身を含む): 216842214888

約数和(自身を除く): 44694741481

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 20788247, 145517729, 270247211, 1018624103, 1891730477, 3513213743, 13242113339, 24592496201, 172147473407]

約数ペア:

[(1, 172147473407), (7, 24592496201), (13, 13242113339), (49, 3513213743), (91, 1891730477), (169, 1018624103), (637, 270247211), (1183, 145517729), (8281, 20788247)]