19983279

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7393}}^1$

素因数の和:7466

約数の個数: 16

約数和(自身を含む): 28747872

約数和(自身を除く): 8764593

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7393, 22179, 125681, 377043, 391829, 1175487, 6661093, 19983279]

約数ペア:

[(1, 19983279), (3, 6661093), (17, 1175487), (51, 391829), (53, 377043), (159, 125681), (901, 22179), (2703, 7393)]