19103931

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1021}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 35712768

約数和(自身を除く): 16608837

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 243, 297, 567, 693, 891, 1021, 1701, 2079, 2673, 3063, 6237, 7147, 9189, 11231, 18711, 21441, 27567, 33693, 64323, 78617, 82701, 101079, 192969, 235851, 248103, 303237, 578907, 707553, 909711, 1736721, 2122659, 2729133, 6367977, 19103931]

約数ペア:

[(1, 19103931), (3, 6367977), (7, 2729133), (9, 2122659), (11, 1736721), (21, 909711), (27, 707553), (33, 578907), (63, 303237), (77, 248103), (81, 235851), (99, 192969), (189, 101079), (231, 82701), (243, 78617), (297, 64323), (567, 33693), (693, 27567), (891, 21441), (1021, 18711), (1701, 11231), (2079, 9189), (2673, 7147), (3063, 6237)]