19735863

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1409}}^1$

素因数の和:1471

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 12750537

約数列:

[1, 3, 7, 21, 23, 29, 69, 87, 161, 203, 483, 609, 667, 1409, 2001, 4227, 4669, 9863, 14007, 29589, 32407, 40861, 97221, 122583, 226849, 286027, 680547, 858081, 939803, 2819409, 6578621, 19735863]

約数ペア:

[(1, 19735863), (3, 6578621), (7, 2819409), (21, 939803), (23, 858081), (29, 680547), (69, 286027), (87, 226849), (161, 122583), (203, 97221), (483, 40861), (609, 32407), (667, 29589), (1409, 14007), (2001, 9863), (4227, 4669)]