21054295040405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12348560141}}^1$

素因数の和:12348560188

約数の個数: 16

約数和(自身を含む): 28451082567168

約数和(自身を除く): 7396787526763

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12348560141, 61742800705, 135834161551, 382805364371, 679170807755, 1914026821855, 4210859008081, 21054295040405]

約数ペア:

[(1, 21054295040405), (5, 4210859008081), (11, 1914026821855), (31, 679170807755), (55, 382805364371), (155, 135834161551), (341, 61742800705), (1705, 12348560141)]