1321122817

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{21503}}^1$

素因数の和:21708

約数の個数: 16

約数和(自身を含む): 1544159232

約数和(自身を除く): 223036415

約数列:

[1, 7, 67, 131, 469, 917, 8777, 21503, 61439, 150521, 1440701, 2816893, 10084907, 19718251, 188731831, 1321122817]

約数ペア:

[(1, 1321122817), (7, 188731831), (67, 19718251), (131, 10084907), (469, 2816893), (917, 1440701), (8777, 150521), (21503, 61439)]