16421915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4493}}^1$

素因数の和:4558

約数の個数: 16

約数和(自身を含む): 21355488

約数和(自身を除く): 4933573

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 4493, 22465, 76381, 193199, 381905, 965995, 3284383, 16421915]

約数ペア:

[(1, 16421915), (5, 3284383), (17, 965995), (43, 381905), (85, 193199), (215, 76381), (731, 22465), (3655, 4493)]