21308487979

素因数分解:

${\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{138113}}^1$

素因数の和:138278

約数の個数: 16

約数和(自身を含む): 22553463744

約数和(自身を除く): 1244975765

約数列:

[1, 41, 53, 71, 2173, 2911, 3763, 138113, 154283, 5662633, 7319989, 9806023, 300119549, 402046943, 519719219, 21308487979]

約数ペア:

[(1, 21308487979), (41, 519719219), (53, 402046943), (71, 300119549), (2173, 9806023), (2911, 7319989), (3763, 5662633), (138113, 154283)]