20121479987

素因数分解:

$7^1\times {\mathrm{227}}^1\times {\mathrm{2521}}^1\times {\mathrm{5023}}^1$

素因数の和:7778

約数の個数: 16

約数和(自身を含む): 23111043072

約数和(自身を除く): 2989563085

約数列:

[1, 7, 227, 1589, 2521, 5023, 17647, 35161, 572267, 1140221, 4005869, 7981547, 12662983, 88640881, 2874497141, 20121479987]

約数ペア:

[(1, 20121479987), (7, 2874497141), (227, 88640881), (1589, 12662983), (2521, 7981547), (5023, 4005869), (17647, 1140221), (35161, 572267)]