20321919

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 31253040

約数和(自身を除く): 10931121

約数列:

[1, 3, 9, 17, 51, 153, 317, 419, 951, 1257, 2853, 3771, 5389, 7123, 16167, 21369, 48501, 64107, 132823, 398469, 1195407, 2257991, 6773973, 20321919]

約数ペア:

[(1, 20321919), (3, 6773973), (9, 2257991), (17, 1195407), (51, 398469), (153, 132823), (317, 64107), (419, 48501), (951, 21369), (1257, 16167), (2853, 7123), (3771, 5389)]