21000901311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{3359}}^1\times {\mathrm{53437}}^1$

素因数の和:56815

約数の個数: 24

約数和(自身を含む): 32678405760

約数和(自身を除く): 11677504449

約数列:

[1, 3, 9, 13, 39, 117, 3359, 10077, 30231, 43667, 53437, 131001, 160311, 393003, 480933, 694681, 2084043, 6252129, 179494883, 538484649, 1615453947, 2333433479, 7000300437, 21000901311]

約数ペア:

[(1, 21000901311), (3, 7000300437), (9, 2333433479), (13, 1615453947), (39, 538484649), (117, 179494883), (3359, 6252129), (10077, 2084043), (30231, 694681), (43667, 480933), (53437, 393003), (131001, 160311)]