1991286

素因数分解:

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

素因数の和:221

約数の個数: 48

約数和(自身を含む): 4801680

約数和(自身を除く): 2810394

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 113, 178, 198, 226, 267, 339, 534, 678, 801, 979, 1017, 1243, 1602, 1958, 2034, 2486, 2937, 3729, 5874, 7458, 8811, 10057, 11187, 17622, 20114, 22374, 30171, 60342, 90513, 110627, 181026, 221254, 331881, 663762, 995643, 1991286]

約数ペア:

[(1, 1991286), (2, 995643), (3, 663762), (6, 331881), (9, 221254), (11, 181026), (18, 110627), (22, 90513), (33, 60342), (66, 30171), (89, 22374), (99, 20114), (113, 17622), (178, 11187), (198, 10057), (226, 8811), (267, 7458), (339, 5874), (534, 3729), (678, 2937), (801, 2486), (979, 2034), (1017, 1958), (1243, 1602)]