201721018355

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{2529893}}^1$

素因数の和:2530366

約数の個数: 16

約数和(自身を含む): 249184439424

約数和(自身を除く): 47463421069

約数列:

[1, 5, 37, 185, 431, 2155, 15947, 79735, 2529893, 12649465, 93606041, 468030205, 1090383883, 5451919415, 40344203671, 201721018355]

約数ペア:

[(1, 201721018355), (5, 40344203671), (37, 5451919415), (185, 1090383883), (431, 468030205), (2155, 93606041), (15947, 12649465), (79735, 2529893)]