21558376

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6311}}^1$

素因数の和:6385

約数の個数: 32

約数和(自身を含む): 46961280

約数和(自身を除く): 25402904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6311, 12622, 25244, 44177, 50488, 88354, 176708, 353416, 384971, 769942, 1539884, 2694797, 3079768, 5389594, 10779188, 21558376]

約数ペア:

[(1, 21558376), (2, 10779188), (4, 5389594), (7, 3079768), (8, 2694797), (14, 1539884), (28, 769942), (56, 384971), (61, 353416), (122, 176708), (244, 88354), (427, 50488), (488, 44177), (854, 25244), (1708, 12622), (3416, 6311)]