19943406

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1907}}^1$

素因数の和:2005

約数の個数: 48

約数和(自身を含む): 50004864

約数和(自身を除く): 30061458

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 83, 126, 166, 249, 498, 581, 747, 1162, 1494, 1743, 1907, 3486, 3814, 5229, 5721, 10458, 11442, 13349, 17163, 26698, 34326, 40047, 80094, 120141, 158281, 240282, 316562, 474843, 949686, 1107967, 1424529, 2215934, 2849058, 3323901, 6647802, 9971703, 19943406]

約数ペア:

[(1, 19943406), (2, 9971703), (3, 6647802), (6, 3323901), (7, 2849058), (9, 2215934), (14, 1424529), (18, 1107967), (21, 949686), (42, 474843), (63, 316562), (83, 240282), (126, 158281), (166, 120141), (249, 80094), (498, 40047), (581, 34326), (747, 26698), (1162, 17163), (1494, 13349), (1743, 11442), (1907, 10458), (3486, 5721), (3814, 5229)]