19974386971

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{3617}}^1\times {\mathrm{71719}}^1$

素因数の和:75354

約数の個数: 16

約数和(自身を含む): 24910364160

約数和(自身を除く): 4935977189

約数列:

[1, 7, 11, 77, 3617, 25319, 39787, 71719, 278509, 502033, 788909, 5522363, 259407623, 1815853361, 2853483853, 19974386971]

約数ペア:

[(1, 19974386971), (7, 2853483853), (11, 1815853361), (77, 259407623), (3617, 5522363), (25319, 788909), (39787, 502033), (71719, 278509)]