39947761

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{641}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 47456640

約数和(自身を除く): 7508879

約数列:

[1, 7, 29, 203, 307, 641, 2149, 4487, 8903, 18589, 62321, 130123, 196787, 1377509, 5706823, 39947761]

約数ペア:

[(1, 39947761), (7, 5706823), (29, 1377509), (203, 196787), (307, 130123), (641, 62321), (2149, 18589), (4487, 8903)]