21650315

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5081845

約数列:

[1, 5, 47, 181, 235, 509, 905, 2545, 8507, 23923, 42535, 92129, 119615, 460645, 4330063, 21650315]

約数ペア:

[(1, 21650315), (5, 4330063), (47, 460645), (181, 119615), (235, 92129), (509, 42535), (905, 23923), (2545, 8507)]