20156283

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1909

約数の個数: 40

約数和(自身を含む): 36241920

約数和(自身を除く): 16085637

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1871, 3591, 5613, 10773, 13097, 16839, 35549, 39291, 50517, 106647, 117873, 151551, 248843, 319941, 353619, 746529, 959823, 1060857, 2239587, 2879469, 6718761, 20156283]

約数ペア:

[(1, 20156283), (3, 6718761), (7, 2879469), (9, 2239587), (19, 1060857), (21, 959823), (27, 746529), (57, 353619), (63, 319941), (81, 248843), (133, 151551), (171, 117873), (189, 106647), (399, 50517), (513, 39291), (567, 35549), (1197, 16839), (1539, 13097), (1871, 10773), (3591, 5613)]