3981958

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:447

約数の個数: 16

約数和(自身を含む): 6142464

約数和(自身を除く): 2160506

約数列:

[1, 2, 61, 122, 127, 254, 257, 514, 7747, 15494, 15677, 31354, 32639, 65278, 1990979, 3981958]

約数ペア:

[(1, 3981958), (2, 1990979), (61, 65278), (122, 32639), (127, 31354), (254, 15677), (257, 15494), (514, 7747)]