20515782

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 50503680

約数和(自身を除く): 29987898

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 47, 57, 94, 114, 133, 141, 266, 282, 329, 399, 547, 658, 798, 893, 987, 1094, 1641, 1786, 1974, 2679, 3282, 3829, 5358, 6251, 7658, 10393, 11487, 12502, 18753, 20786, 22974, 25709, 31179, 37506, 51418, 62358, 72751, 77127, 145502, 154254, 179963, 218253, 359926, 436506, 488471, 539889, 976942, 1079778, 1465413, 2930826, 3419297, 6838594, 10257891, 20515782]

約数ペア:

[(1, 20515782), (2, 10257891), (3, 6838594), (6, 3419297), (7, 2930826), (14, 1465413), (19, 1079778), (21, 976942), (38, 539889), (42, 488471), (47, 436506), (57, 359926), (94, 218253), (114, 179963), (133, 154254), (141, 145502), (266, 77127), (282, 72751), (329, 62358), (399, 51418), (547, 37506), (658, 31179), (798, 25709), (893, 22974), (987, 20786), (1094, 18753), (1641, 12502), (1786, 11487), (1974, 10393), (2679, 7658), (3282, 6251), (3829, 5358)]