20702889

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2879}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 32348160

約数和(自身を除く): 11645271

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 423, 799, 2397, 2879, 7191, 8637, 25911, 48943, 135313, 146829, 405939, 440487, 1217817, 2300321, 6900963, 20702889]

約数ペア:

[(1, 20702889), (3, 6900963), (9, 2300321), (17, 1217817), (47, 440487), (51, 405939), (141, 146829), (153, 135313), (423, 48943), (799, 25911), (2397, 8637), (2879, 7191)]