21709377

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{2179}}^1$

素因数の和:2235

約数の個数: 24

約数和(自身を含む): 33327840

約数和(自身を除く): 11618463

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 369, 1107, 2179, 3321, 6537, 9963, 19611, 58833, 89339, 176499, 268017, 529497, 804051, 2412153, 7236459, 21709377]

約数ペア:

[(1, 21709377), (3, 7236459), (9, 2412153), (27, 804051), (41, 529497), (81, 268017), (123, 176499), (243, 89339), (369, 58833), (1107, 19611), (2179, 9963), (3321, 6537)]