51380973

素因数分解:

$3^4\times 7^1\times {\mathrm{90619}}^1$

素因数の和:90638

約数の個数: 20

約数和(自身を含む): 87720160

約数和(自身を除く): 36339187

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 90619, 271857, 634333, 815571, 1902999, 2446713, 5708997, 7340139, 17126991, 51380973]

約数ペア:

[(1, 51380973), (3, 17126991), (7, 7340139), (9, 5708997), (21, 2446713), (27, 1902999), (63, 815571), (81, 634333), (189, 271857), (567, 90619)]