3997395

素因数分解:

$3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 6978192

約数和(自身を除く): 2980797

約数列:

[1, 3, 5, 9, 15, 45, 211, 421, 633, 1055, 1263, 1899, 2105, 3165, 3789, 6315, 9495, 18945, 88831, 266493, 444155, 799479, 1332465, 3997395]

約数ペア:

[(1, 3997395), (3, 1332465), (5, 799479), (9, 444155), (15, 266493), (45, 88831), (211, 18945), (421, 9495), (633, 6315), (1055, 3789), (1263, 3165), (1899, 2105)]