21214115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{839}}^1$

素因数の和:1246

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 6304285

約数列:

[1, 5, 13, 65, 389, 839, 1945, 4195, 5057, 10907, 25285, 54535, 326371, 1631855, 4242823, 21214115]

約数ペア:

[(1, 21214115), (5, 4242823), (13, 1631855), (65, 326371), (389, 54535), (839, 25285), (1945, 10907), (4195, 5057)]