20382537

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 32182272

約数和(自身を除く): 11799735

約数列:

[1, 3, 7, 21, 47, 107, 141, 193, 321, 329, 579, 749, 987, 1351, 2247, 4053, 5029, 9071, 15087, 20651, 27213, 35203, 61953, 63497, 105609, 144557, 190491, 433671, 970597, 2911791, 6794179, 20382537]

約数ペア:

[(1, 20382537), (3, 6794179), (7, 2911791), (21, 970597), (47, 433671), (107, 190491), (141, 144557), (193, 105609), (321, 63497), (329, 61953), (579, 35203), (749, 27213), (987, 20651), (1351, 15087), (2247, 9071), (4053, 5029)]