197558739

素因数分解:

$3^2\times 7^3\times {\mathrm{63997}}^1$

素因数の和:64024

約数の個数: 24

約数和(自身を含む): 332789600

約数和(自身を除く): 135230861

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 63997, 191991, 447979, 575973, 1343937, 3135853, 4031811, 9407559, 21950971, 28222677, 65852913, 197558739]

約数ペア:

[(1, 197558739), (3, 65852913), (7, 28222677), (9, 21950971), (21, 9407559), (49, 4031811), (63, 3135853), (147, 1343937), (343, 575973), (441, 447979), (1029, 191991), (3087, 63997)]