20519907

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{1447}}^1$

素因数の和:1642

約数の個数: 16

約数和(自身を含む): 28496640

約数和(自身を除く): 7976733

約数列:

[1, 3, 29, 87, 163, 489, 1447, 4341, 4727, 14181, 41963, 125889, 235861, 707583, 6839969, 20519907]

約数ペア:

[(1, 20519907), (3, 6839969), (29, 707583), (87, 235861), (163, 125889), (489, 41963), (1447, 14181), (4341, 4727)]