388589943

素因数分解:

$3^1\times 7^2\times {\mathrm{1237}}^1\times {\mathrm{2137}}^1$

素因数の和:3391

約数の個数: 24

約数和(自身を含む): 603480432

約数和(自身を除く): 214890489

約数列:

[1, 3, 7, 21, 49, 147, 1237, 2137, 3711, 6411, 8659, 14959, 25977, 44877, 60613, 104713, 181839, 314139, 2643469, 7930407, 18504283, 55512849, 129529981, 388589943]

約数ペア:

[(1, 388589943), (3, 129529981), (7, 55512849), (21, 18504283), (49, 7930407), (147, 2643469), (1237, 314139), (2137, 181839), (3711, 104713), (6411, 60613), (8659, 44877), (14959, 25977)]