19289475

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^2$

素因数の和:118

約数の個数: 72

約数和(自身を含む): 38457360

約数和(自身を除く): 19167885

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 41, 45, 51, 75, 85, 123, 135, 153, 205, 225, 255, 369, 425, 459, 615, 675, 697, 765, 1025, 1107, 1275, 1681, 1845, 2091, 2295, 3075, 3485, 3825, 5043, 5535, 6273, 8405, 9225, 10455, 11475, 15129, 17425, 18819, 25215, 27675, 28577, 31365, 42025, 45387, 52275, 75645, 85731, 94095, 126075, 142885, 156825, 226935, 257193, 378225, 428655, 470475, 714425, 771579, 1134675, 1285965, 2143275, 3857895, 6429825, 19289475]

約数ペア:

[(1, 19289475), (3, 6429825), (5, 3857895), (9, 2143275), (15, 1285965), (17, 1134675), (25, 771579), (27, 714425), (41, 470475), (45, 428655), (51, 378225), (75, 257193), (85, 226935), (123, 156825), (135, 142885), (153, 126075), (205, 94095), (225, 85731), (255, 75645), (369, 52275), (425, 45387), (459, 42025), (615, 31365), (675, 28577), (697, 27675), (765, 25215), (1025, 18819), (1107, 17425), (1275, 15129), (1681, 11475), (1845, 10455), (2091, 9225), (2295, 8405), (3075, 6273), (3485, 5535), (3825, 5043)]