20212884

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 55692000

約数和(自身を除く): 35479116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1019, 1044, 1102, 1653, 2038, 2204, 3057, 3306, 4076, 4959, 6114, 6612, 9171, 9918, 12228, 18342, 19361, 19836, 29551, 36684, 38722, 58083, 59102, 77444, 88653, 116166, 118204, 174249, 177306, 232332, 265959, 348498, 354612, 531918, 561469, 696996, 1063836, 1122938, 1684407, 2245876, 3368814, 5053221, 6737628, 10106442, 20212884]

約数ペア:

[(1, 20212884), (2, 10106442), (3, 6737628), (4, 5053221), (6, 3368814), (9, 2245876), (12, 1684407), (18, 1122938), (19, 1063836), (29, 696996), (36, 561469), (38, 531918), (57, 354612), (58, 348498), (76, 265959), (87, 232332), (114, 177306), (116, 174249), (171, 118204), (174, 116166), (228, 88653), (261, 77444), (342, 59102), (348, 58083), (522, 38722), (551, 36684), (684, 29551), (1019, 19836), (1044, 19361), (1102, 18342), (1653, 12228), (2038, 9918), (2204, 9171), (3057, 6612), (3306, 6114), (4076, 4959)]