12780821949

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{31513}}^1$

素因数の和:31650

約数の個数: 48

約数和(自身を含む): 20693352960

約数和(自身を除く): 7912531011

約数列:

[1, 3, 7, 21, 31, 49, 89, 93, 147, 217, 267, 623, 651, 1519, 1869, 2759, 4361, 4557, 8277, 13083, 19313, 31513, 57939, 94539, 135191, 220591, 405573, 661773, 976903, 1544137, 2804657, 2930709, 4632411, 6838321, 8413971, 19632599, 20514963, 47868247, 58897797, 86944367, 137428193, 143604741, 260833101, 412284579, 608610569, 1825831707, 4260273983, 12780821949]

約数ペア:

[(1, 12780821949), (3, 4260273983), (7, 1825831707), (21, 608610569), (31, 412284579), (49, 260833101), (89, 143604741), (93, 137428193), (147, 86944367), (217, 58897797), (267, 47868247), (623, 20514963), (651, 19632599), (1519, 8413971), (1869, 6838321), (2759, 4632411), (4361, 2930709), (4557, 2804657), (8277, 1544137), (13083, 976903), (19313, 661773), (31513, 405573), (57939, 220591), (94539, 135191)]