20667426

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1031}}^1$

素因数の和:1306

約数の個数: 32

約数和(自身を含む): 44731008

約数和(自身を除く): 24063582

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1031, 1542, 2062, 3093, 3341, 6186, 6682, 10023, 13403, 20046, 26806, 40209, 80418, 264967, 529934, 794901, 1589802, 3444571, 6889142, 10333713, 20667426]

約数ペア:

[(1, 20667426), (2, 10333713), (3, 6889142), (6, 3444571), (13, 1589802), (26, 794901), (39, 529934), (78, 264967), (257, 80418), (514, 40209), (771, 26806), (1031, 20046), (1542, 13403), (2062, 10023), (3093, 6682), (3341, 6186)]