18933159

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{59}}^2$

素因数の和:172

約数の個数: 36

約数和(自身を含む): 30679224

約数和(自身を除く): 11746065

約数列:

[1, 3, 7, 21, 37, 49, 59, 111, 147, 177, 259, 413, 777, 1239, 1813, 2183, 2891, 3481, 5439, 6549, 8673, 10443, 15281, 24367, 45843, 73101, 106967, 128797, 170569, 320901, 386391, 511707, 901579, 2704737, 6311053, 18933159]

約数ペア:

[(1, 18933159), (3, 6311053), (7, 2704737), (21, 901579), (37, 511707), (49, 386391), (59, 320901), (111, 170569), (147, 128797), (177, 106967), (259, 73101), (413, 45843), (777, 24367), (1239, 15281), (1813, 10443), (2183, 8673), (2891, 6549), (3481, 5439)]