19918872

素因数分解:

$2^3\times 3^4\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:598

約数の個数: 80

約数和(自身を含む): 56845800

約数和(自身を除く): 36926928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 59, 72, 81, 108, 118, 162, 177, 216, 236, 324, 354, 472, 521, 531, 648, 708, 1042, 1062, 1416, 1563, 1593, 2084, 2124, 3126, 3186, 4168, 4248, 4689, 4779, 6252, 6372, 9378, 9558, 12504, 12744, 14067, 18756, 19116, 28134, 30739, 37512, 38232, 42201, 56268, 61478, 84402, 92217, 112536, 122956, 168804, 184434, 245912, 276651, 337608, 368868, 553302, 737736, 829953, 1106604, 1659906, 2213208, 2489859, 3319812, 4979718, 6639624, 9959436, 19918872]

約数ペア:

[(1, 19918872), (2, 9959436), (3, 6639624), (4, 4979718), (6, 3319812), (8, 2489859), (9, 2213208), (12, 1659906), (18, 1106604), (24, 829953), (27, 737736), (36, 553302), (54, 368868), (59, 337608), (72, 276651), (81, 245912), (108, 184434), (118, 168804), (162, 122956), (177, 112536), (216, 92217), (236, 84402), (324, 61478), (354, 56268), (472, 42201), (521, 38232), (531, 37512), (648, 30739), (708, 28134), (1042, 19116), (1062, 18756), (1416, 14067), (1563, 12744), (1593, 12504), (2084, 9558), (2124, 9378), (3126, 6372), (3186, 6252), (4168, 4779), (4248, 4689)]