621891004

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{159787}}^1$

素因数の和:159937

約数の個数: 24

約数和(自身を含む): 1252737920

約数和(自身を除く): 630846916

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 159787, 319574, 639148, 1118509, 2237018, 4474036, 22210393, 44420786, 88841572, 155472751, 310945502, 621891004]

約数ペア:

[(1, 621891004), (2, 310945502), (4, 155472751), (7, 88841572), (14, 44420786), (28, 22210393), (139, 4474036), (278, 2237018), (556, 1118509), (973, 639148), (1946, 319574), (3892, 159787)]