21050613

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 32198400

約数和(自身を除く): 11147787

約数列:

[1, 3, 9, 19, 57, 171, 257, 479, 771, 1437, 2313, 4311, 4883, 9101, 14649, 27303, 43947, 81909, 123103, 369309, 1107927, 2338957, 7016871, 21050613]

約数ペア:

[(1, 21050613), (3, 7016871), (9, 2338957), (19, 1107927), (57, 369309), (171, 123103), (257, 81909), (479, 43947), (771, 27303), (1437, 14649), (2313, 9101), (4311, 4883)]