18941264

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{839}}^1$

素因数の和:947

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 20431216

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 83, 136, 166, 272, 332, 664, 839, 1328, 1411, 1678, 2822, 3356, 5644, 6712, 11288, 13424, 14263, 22576, 28526, 57052, 69637, 114104, 139274, 228208, 278548, 557096, 1114192, 1183829, 2367658, 4735316, 9470632, 18941264]

約数ペア:

[(1, 18941264), (2, 9470632), (4, 4735316), (8, 2367658), (16, 1183829), (17, 1114192), (34, 557096), (68, 278548), (83, 228208), (136, 139274), (166, 114104), (272, 69637), (332, 57052), (664, 28526), (839, 22576), (1328, 14263), (1411, 13424), (1678, 11288), (2822, 6712), (3356, 5644)]