21904146

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 53218620

約数和(自身を除く): 31314474

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 113, 121, 178, 198, 226, 242, 267, 339, 363, 534, 678, 726, 801, 979, 1017, 1089, 1243, 1602, 1958, 2034, 2178, 2486, 2937, 3729, 5874, 7458, 8811, 10057, 10769, 11187, 13673, 17622, 20114, 21538, 22374, 27346, 30171, 32307, 41019, 60342, 64614, 82038, 90513, 96921, 110627, 123057, 181026, 193842, 221254, 246114, 331881, 663762, 995643, 1216897, 1991286, 2433794, 3650691, 7301382, 10952073, 21904146]

約数ペア:

[(1, 21904146), (2, 10952073), (3, 7301382), (6, 3650691), (9, 2433794), (11, 1991286), (18, 1216897), (22, 995643), (33, 663762), (66, 331881), (89, 246114), (99, 221254), (113, 193842), (121, 181026), (178, 123057), (198, 110627), (226, 96921), (242, 90513), (267, 82038), (339, 64614), (363, 60342), (534, 41019), (678, 32307), (726, 30171), (801, 27346), (979, 22374), (1017, 21538), (1089, 20114), (1243, 17622), (1602, 13673), (1958, 11187), (2034, 10769), (2178, 10057), (2486, 8811), (2937, 7458), (3729, 5874)]