19968487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13649}}^1$

素因数の和:13686

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 6239513

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 13649, 95543, 150139, 259331, 1050973, 1815317, 2852641, 19968487]

約数ペア:

[(1, 19968487), (7, 2852641), (11, 1815317), (19, 1050973), (77, 259331), (133, 150139), (209, 95543), (1463, 13649)]