20145771821

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{838813}}^1$

素因数の和:838940

約数の個数: 16

約数和(自身を含む): 23835738624

約数和(自身を除く): 3689966803

約数列:

[1, 7, 47, 73, 329, 511, 3431, 24017, 838813, 5871691, 39424211, 61233349, 275969477, 428633443, 2877967403, 20145771821]

約数ペア:

[(1, 20145771821), (7, 2877967403), (47, 428633443), (73, 275969477), (329, 61233349), (511, 39424211), (3431, 5871691), (24017, 838813)]