18539998

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:747

約数の個数: 16

約数和(自身を含む): 28287504

約数和(自身を除く): 9747506

約数列:

[1, 2, 97, 194, 227, 421, 454, 842, 22019, 40837, 44038, 81674, 95567, 191134, 9269999, 18539998]

約数ペア:

[(1, 18539998), (2, 9269999), (97, 191134), (194, 95567), (227, 81674), (421, 44038), (454, 40837), (842, 22019)]