18540795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1$

素因数の和:109

約数の個数: 96

約数和(自身を含む): 39610368

約数和(自身を除く): 21069573

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 47, 51, 65, 85, 91, 105, 119, 141, 195, 221, 235, 255, 273, 289, 329, 357, 455, 595, 611, 663, 705, 799, 867, 987, 1105, 1365, 1445, 1547, 1645, 1785, 1833, 2023, 2397, 3055, 3315, 3757, 3995, 4277, 4335, 4641, 4935, 5593, 6069, 7735, 9165, 10115, 10387, 11271, 11985, 12831, 13583, 16779, 18785, 21385, 23205, 26299, 27965, 30345, 31161, 40749, 51935, 56355, 64155, 67915, 72709, 78897, 83895, 95081, 131495, 155805, 176579, 203745, 218127, 285243, 363545, 394485, 475405, 529737, 882895, 1090635, 1236053, 1426215, 2648685, 3708159, 6180265, 18540795]

約数ペア:

[(1, 18540795), (3, 6180265), (5, 3708159), (7, 2648685), (13, 1426215), (15, 1236053), (17, 1090635), (21, 882895), (35, 529737), (39, 475405), (47, 394485), (51, 363545), (65, 285243), (85, 218127), (91, 203745), (105, 176579), (119, 155805), (141, 131495), (195, 95081), (221, 83895), (235, 78897), (255, 72709), (273, 67915), (289, 64155), (329, 56355), (357, 51935), (455, 40749), (595, 31161), (611, 30345), (663, 27965), (705, 26299), (799, 23205), (867, 21385), (987, 18785), (1105, 16779), (1365, 13583), (1445, 12831), (1547, 11985), (1645, 11271), (1785, 10387), (1833, 10115), (2023, 9165), (2397, 7735), (3055, 6069), (3315, 5593), (3757, 4935), (3995, 4641), (4277, 4335)]