18031815

素因数分解:

$3^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 34715520

約数和(自身を除く): 16683705

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 97, 135, 153, 243, 255, 291, 405, 459, 485, 729, 765, 873, 1215, 1377, 1455, 1649, 2187, 2295, 2619, 3645, 4131, 4365, 4947, 6885, 7857, 8245, 10935, 12393, 13095, 14841, 20655, 23571, 24735, 37179, 39285, 44523, 61965, 70713, 74205, 117855, 133569, 185895, 212139, 222615, 353565, 400707, 667845, 1060695, 1202121, 2003535, 3606363, 6010605, 18031815]

約数ペア:

[(1, 18031815), (3, 6010605), (5, 3606363), (9, 2003535), (15, 1202121), (17, 1060695), (27, 667845), (45, 400707), (51, 353565), (81, 222615), (85, 212139), (97, 185895), (135, 133569), (153, 117855), (243, 74205), (255, 70713), (291, 61965), (405, 44523), (459, 39285), (485, 37179), (729, 24735), (765, 23571), (873, 20655), (1215, 14841), (1377, 13095), (1455, 12393), (1649, 10935), (2187, 8245), (2295, 7857), (2619, 6885), (3645, 4947), (4131, 4365)]