20377287

素因数分解:

$3^2\times 7^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:98

約数の個数: 60

約数和(自身を含む): 36704304

約数和(自身を除く): 16327017

約数列:

[1, 3, 7, 9, 21, 23, 41, 49, 63, 69, 123, 147, 161, 207, 287, 343, 369, 441, 483, 861, 943, 1029, 1127, 1449, 2009, 2401, 2583, 2829, 3087, 3381, 6027, 6601, 7203, 7889, 8487, 10143, 14063, 18081, 19803, 21609, 23667, 42189, 46207, 55223, 59409, 71001, 98441, 126567, 138621, 165669, 295323, 323449, 415863, 497007, 885969, 970347, 2264143, 2911041, 6792429, 20377287]

約数ペア:

[(1, 20377287), (3, 6792429), (7, 2911041), (9, 2264143), (21, 970347), (23, 885969), (41, 497007), (49, 415863), (63, 323449), (69, 295323), (123, 165669), (147, 138621), (161, 126567), (207, 98441), (287, 71001), (343, 59409), (369, 55223), (441, 46207), (483, 42189), (861, 23667), (943, 21609), (1029, 19803), (1127, 18081), (1449, 14063), (2009, 10143), (2401, 8487), (2583, 7889), (2829, 7203), (3087, 6601), (3381, 6027)]