219953643

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 379180032

約数和(自身を除く): 159226389

約数列:

[1, 3, 7, 13, 21, 39, 41, 43, 91, 123, 129, 273, 287, 301, 457, 533, 559, 861, 903, 1371, 1599, 1677, 1763, 3199, 3731, 3913, 5289, 5941, 9597, 11193, 11739, 12341, 17823, 18737, 19651, 22919, 37023, 41587, 56211, 58953, 68757, 124761, 131159, 137557, 160433, 243581, 255463, 393477, 412671, 481299, 730743, 766389, 805691, 1705067, 1788241, 2417073, 5115201, 5364723, 5639837, 10473983, 16919511, 31421949, 73317881, 219953643]

約数ペア:

[(1, 219953643), (3, 73317881), (7, 31421949), (13, 16919511), (21, 10473983), (39, 5639837), (41, 5364723), (43, 5115201), (91, 2417073), (123, 1788241), (129, 1705067), (273, 805691), (287, 766389), (301, 730743), (457, 481299), (533, 412671), (559, 393477), (861, 255463), (903, 243581), (1371, 160433), (1599, 137557), (1677, 131159), (1763, 124761), (3199, 68757), (3731, 58953), (3913, 56211), (5289, 41587), (5941, 37023), (9597, 22919), (11193, 19651), (11739, 18737), (12341, 17823)]