21074084

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{647}}^1$

素因数の和:1147

約数の個数: 24

約数和(自身を含む): 39191040

約数和(自身を除く): 18116956

約数列:

[1, 2, 4, 17, 34, 68, 479, 647, 958, 1294, 1916, 2588, 8143, 10999, 16286, 21998, 32572, 43996, 309913, 619826, 1239652, 5268521, 10537042, 21074084]

約数ペア:

[(1, 21074084), (2, 10537042), (4, 5268521), (17, 1239652), (34, 619826), (68, 309913), (479, 43996), (647, 32572), (958, 21998), (1294, 16286), (1916, 10999), (2588, 8143)]