21389163719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1249}}^1\times {\mathrm{222403}}^1$

素因数の和:223670

約数の個数: 16

約数和(自身を含む): 26688480000

約数和(自身を除く): 5299316281

約数列:

[1, 7, 11, 77, 1249, 8743, 13739, 96173, 222403, 1556821, 2446433, 17125031, 277781347, 1944469429, 3055594817, 21389163719]

約数ペア:

[(1, 21389163719), (7, 3055594817), (11, 1944469429), (77, 277781347), (1249, 17125031), (8743, 2446433), (13739, 1556821), (96173, 222403)]