20199202

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:897

約数の個数: 16

約数和(自身を含む): 30834720

約数和(自身を除く): 10635518

約数列:

[1, 2, 113, 139, 226, 278, 643, 1286, 15707, 31414, 72659, 89377, 145318, 178754, 10099601, 20199202]

約数ペア:

[(1, 20199202), (2, 10099601), (113, 178754), (139, 145318), (226, 89377), (278, 72659), (643, 31414), (1286, 15707)]