209231113

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{12703}}^1$

素因数の和:12904

約数の個数: 16

約数和(自身を含む): 258958336

約数和(自身を除く): 49727223

約数列:

[1, 7, 13, 91, 181, 1267, 2353, 12703, 16471, 88921, 165139, 1155973, 2299243, 16094701, 29890159, 209231113]

約数ペア:

[(1, 209231113), (7, 29890159), (13, 16094701), (91, 2299243), (181, 1155973), (1267, 165139), (2353, 88921), (12703, 16471)]