20332851

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 16162509

約数列:

[1, 3, 7, 11, 21, 23, 33, 43, 69, 77, 89, 129, 161, 231, 253, 267, 301, 473, 483, 623, 759, 903, 979, 989, 1419, 1771, 1869, 2047, 2937, 2967, 3311, 3827, 5313, 6141, 6853, 6923, 9933, 10879, 11481, 14329, 20559, 20769, 22517, 26789, 32637, 42097, 42987, 67551, 76153, 80367, 88021, 126291, 157619, 228459, 264063, 294679, 472857, 616147, 884037, 968231, 1848441, 2904693, 6777617, 20332851]

約数ペア:

[(1, 20332851), (3, 6777617), (7, 2904693), (11, 1848441), (21, 968231), (23, 884037), (33, 616147), (43, 472857), (69, 294679), (77, 264063), (89, 228459), (129, 157619), (161, 126291), (231, 88021), (253, 80367), (267, 76153), (301, 67551), (473, 42987), (483, 42097), (623, 32637), (759, 26789), (903, 22517), (979, 20769), (989, 20559), (1419, 14329), (1771, 11481), (1869, 10879), (2047, 9933), (2937, 6923), (2967, 6853), (3311, 6141), (3827, 5313)]