28747719

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3228

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 27022905

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 3003, 3191, 9009, 9573, 22337, 28719, 35101, 41483, 67011, 105303, 124449, 201033, 245707, 290381, 315909, 373347, 456313, 737121, 871143, 1368939, 2211363, 2613429, 3194191, 4106817, 9582573, 28747719]

約数ペア:

[(1, 28747719), (3, 9582573), (7, 4106817), (9, 3194191), (11, 2613429), (13, 2211363), (21, 1368939), (33, 871143), (39, 737121), (63, 456313), (77, 373347), (91, 315909), (99, 290381), (117, 245707), (143, 201033), (231, 124449), (273, 105303), (429, 67011), (693, 41483), (819, 35101), (1001, 28719), (1287, 22337), (3003, 9573), (3191, 9009)]