19218996

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 51597000

約数和(自身を除く): 32378004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 41, 58, 82, 87, 116, 123, 164, 174, 246, 261, 348, 369, 449, 492, 522, 738, 898, 1044, 1189, 1347, 1476, 1796, 2378, 2694, 3567, 4041, 4756, 5388, 7134, 8082, 10701, 13021, 14268, 16164, 18409, 21402, 26042, 36818, 39063, 42804, 52084, 55227, 73636, 78126, 110454, 117189, 156252, 165681, 220908, 234378, 331362, 468756, 533861, 662724, 1067722, 1601583, 2135444, 3203166, 4804749, 6406332, 9609498, 19218996]

約数ペア:

[(1, 19218996), (2, 9609498), (3, 6406332), (4, 4804749), (6, 3203166), (9, 2135444), (12, 1601583), (18, 1067722), (29, 662724), (36, 533861), (41, 468756), (58, 331362), (82, 234378), (87, 220908), (116, 165681), (123, 156252), (164, 117189), (174, 110454), (246, 78126), (261, 73636), (348, 55227), (369, 52084), (449, 42804), (492, 39063), (522, 36818), (738, 26042), (898, 21402), (1044, 18409), (1189, 16164), (1347, 14268), (1476, 13021), (1796, 10701), (2378, 8082), (2694, 7134), (3567, 5388), (4041, 4756)]