20737143

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:876

約数の個数: 36

約数和(自身を含む): 35479080

約数和(自身を除く): 14741937

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 797, 1239, 2391, 2891, 3717, 5579, 7173, 8673, 16737, 26019, 39053, 47023, 50211, 117159, 141069, 329161, 351477, 423207, 987483, 2304127, 2962449, 6912381, 20737143]

約数ペア:

[(1, 20737143), (3, 6912381), (7, 2962449), (9, 2304127), (21, 987483), (49, 423207), (59, 351477), (63, 329161), (147, 141069), (177, 117159), (413, 50211), (441, 47023), (531, 39053), (797, 26019), (1239, 16737), (2391, 8673), (2891, 7173), (3717, 5579)]