21800412

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 58260384

約数和(自身を除く): 36459972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 113, 138, 207, 226, 233, 276, 339, 414, 452, 466, 678, 699, 828, 932, 1017, 1356, 1398, 2034, 2097, 2599, 2796, 4068, 4194, 5198, 5359, 7797, 8388, 10396, 10718, 15594, 16077, 21436, 23391, 26329, 31188, 32154, 46782, 48231, 52658, 64308, 78987, 93564, 96462, 105316, 157974, 192924, 236961, 315948, 473922, 605567, 947844, 1211134, 1816701, 2422268, 3633402, 5450103, 7266804, 10900206, 21800412]

約数ペア:

[(1, 21800412), (2, 10900206), (3, 7266804), (4, 5450103), (6, 3633402), (9, 2422268), (12, 1816701), (18, 1211134), (23, 947844), (36, 605567), (46, 473922), (69, 315948), (92, 236961), (113, 192924), (138, 157974), (207, 105316), (226, 96462), (233, 93564), (276, 78987), (339, 64308), (414, 52658), (452, 48231), (466, 46782), (678, 32154), (699, 31188), (828, 26329), (932, 23391), (1017, 21436), (1356, 16077), (1398, 15594), (2034, 10718), (2097, 10396), (2599, 8388), (2796, 7797), (4068, 5359), (4194, 5198)]