18885279

素因数分解:

$3^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1237}}^1$

素因数の和:1974

約数の個数: 16

約数和(自身を含む): 28840448

約数和(自身を除く): 9955169

約数列:

[1, 3, 7, 21, 727, 1237, 2181, 3711, 5089, 8659, 15267, 25977, 899299, 2697897, 6295093, 18885279]

約数ペア:

[(1, 18885279), (3, 6295093), (7, 2697897), (21, 899299), (727, 25977), (1237, 15267), (2181, 8659), (3711, 5089)]