19164321

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 32685120

約数和(自身を除く): 13520799

約数列:

[1, 3, 9, 11, 17, 33, 51, 59, 99, 153, 177, 187, 193, 531, 561, 579, 649, 1003, 1683, 1737, 1947, 2123, 3009, 3281, 5841, 6369, 9027, 9843, 11033, 11387, 19107, 29529, 33099, 34161, 36091, 99297, 102483, 108273, 125257, 193579, 324819, 375771, 580737, 1127313, 1742211, 2129369, 6388107, 19164321]

約数ペア:

[(1, 19164321), (3, 6388107), (9, 2129369), (11, 1742211), (17, 1127313), (33, 580737), (51, 375771), (59, 324819), (99, 193579), (153, 125257), (177, 108273), (187, 102483), (193, 99297), (531, 36091), (561, 34161), (579, 33099), (649, 29529), (1003, 19107), (1683, 11387), (1737, 11033), (1947, 9843), (2123, 9027), (3009, 6369), (3281, 5841)]