18075015

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:669

約数の個数: 64

約数和(自身を含む): 37969920

約数和(自身を除く): 19894905

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 93, 105, 135, 155, 189, 217, 279, 315, 465, 617, 651, 837, 945, 1085, 1395, 1851, 1953, 3085, 3255, 4185, 4319, 5553, 5859, 9255, 9765, 12957, 16659, 19127, 21595, 27765, 29295, 38871, 57381, 64785, 83295, 95635, 116613, 133889, 172143, 194355, 286905, 401667, 516429, 583065, 669445, 860715, 1205001, 2008335, 2582145, 3615003, 6025005, 18075015]

約数ペア:

[(1, 18075015), (3, 6025005), (5, 3615003), (7, 2582145), (9, 2008335), (15, 1205001), (21, 860715), (27, 669445), (31, 583065), (35, 516429), (45, 401667), (63, 286905), (93, 194355), (105, 172143), (135, 133889), (155, 116613), (189, 95635), (217, 83295), (279, 64785), (315, 57381), (465, 38871), (617, 29295), (651, 27765), (837, 21595), (945, 19127), (1085, 16659), (1395, 12957), (1851, 9765), (1953, 9255), (3085, 5859), (3255, 5553), (4185, 4319)]