19998582989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1709}}^1\times {\mathrm{1831}}^1$

素因数の和:3641

約数の個数: 32

約数和(自身を含む): 25262254080

約数和(自身を除く): 5263671091

約数列:

[1, 7, 11, 77, 83, 581, 913, 1709, 1831, 6391, 11963, 12817, 18799, 20141, 131593, 140987, 141847, 151973, 992929, 1063811, 1560317, 1671703, 3129179, 10922219, 11701921, 21904253, 34420969, 240946783, 259721857, 1818052999, 2856940427, 19998582989]

約数ペア:

[(1, 19998582989), (7, 2856940427), (11, 1818052999), (77, 259721857), (83, 240946783), (581, 34420969), (913, 21904253), (1709, 11701921), (1831, 10922219), (6391, 3129179), (11963, 1671703), (12817, 1560317), (18799, 1063811), (20141, 992929), (131593, 151973), (140987, 141847)]