21800079

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1181}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 36140832

約数和(自身を除く): 14340753

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1181, 2051, 2637, 3543, 6153, 8267, 10629, 18459, 24801, 74403, 346033, 1038099, 2422231, 3114297, 7266693, 21800079]

約数ペア:

[(1, 21800079), (3, 7266693), (7, 3114297), (9, 2422231), (21, 1038099), (63, 346033), (293, 74403), (879, 24801), (1181, 18459), (2051, 10629), (2637, 8267), (3543, 6153)]